Study || Food-Packaging Chemical (DEHP) + Diabetes Risk in Children

Check out the following excerpts from recent research on DEHP (a food-packaging chemical) and diabetes precursors in adolescents:

MOTIVATION

"Mono-(2-ethylhexyl) phthalate (MEHP), a DEHP metabolite, activates peroxisome proliferator-activated receptor(PPAR) g transcription more selectively than rosglitazone,[12] a drug used to treat type 2 diabetes by increasing insulin sensitivity.[13] This selective upregulation appears to explain the differential effects of rosglitazone and MEHP, in which MEHP produces a phenotype of insulin resistance in cellular models,[14,15] and in vivo.[16] Given that PPAR plays key roles in lipid and carbohydrate metabolism,[17] these findings provide biological plausibility for DEHP metabolites in insulin resistance. ..."

BACKGROUND
"Di-2-ethylhexylphthalate (DEHP) is an environmental chemical commonly found in processed foods [and food packaging]. Phthalate exposures, in particular to DEHP, have been associated with insulin resistance in adults, but have not been studied in adolescents."

CONCLUSION
"Urinary DEHP concentrations were associated with increased insulin resistance in this cross-sectional study of adolescents. This study cannot rule out the possibility that insulin-resistant children ingest food with higher phthalate content, or that insulin-resistant children excrete more DEHP."

SOURCE AND FOR FURTHER READING
PEDIATRICS - OFFICIAL JOURNAL OF THE AMERICAN ACADEMY OF PEDIATRICS

Study || Grapeseed Oil and Removal of Sun-Induced Hyperpigmentation?

When the summer hits, my face begins to tan more quickly than the rest of my body (because it is more exposed).  I usually do not have a problem with this tanning variation except when it comes to matching foundation or wearing low-cut tops that reveal a less tanned complexion from the neck down.   I've learned to deal with it since it is only temporary, and during some summers, the tan does balance out over time.

Nevertheless, I stumbled upon this interesting study (while researching grapeseed oil) that demonstrated lightening effects on UV-induced hyperpigmentation (i.e., a tan) after topical application of linoleic acid.  Since grapeseed oil contains a large amount of linoleic acid, it makes you wonder if it would have that effect?  Maybe you can do your own personal experiment or research.

SOURCE:
ABSTRACT ON LINOLEIC ACID LIGHTENS UV-INDUCE HYPERPIGMENTATION (1998)

Study || Hard Water Impact On Hair

Hard water metals concentrate primarily in the cuticle layer.  A study published in 2011 indicated that these metals can affect certain hair properties, which include:

- stiffening of hair strand
- reduction of combing forces
- improvement of ability to hold a style in virgin hair
- reduction of ability to hold a style in bleached hair

Additionally, certain variables affect the uptake of hard water metals by the hair, such as the:

- condition of the hair (e.g., chemically damaged)
- pH of the water
- level of water hardness


ABSTRACTS:
STRUCTURAL IMPLICATIONS OF HARD WATER METALS (2011)
UPTAKE OF HARD WATER METALS BY HAIR (2011)

Study || Water Vs. Coconut Water Vs. Sports Drinks

A study published in early 2012, demonstrated little difference between four beverages with regard to rehydration and subsequent support of exercise.  The four tested beverages included: 1) bottled water, 2) pure coconut water, 3) coconut water from concentrate, and 4) a carbohydrate-electrolyte sports drink.

So then what is a good reason to choose coconut water and/or bottled water over a sports drink?  Well, there are more than one:

1. Pure coconut water generally has fewer calories than sports drinks.  Moreover, bottled water has no calories.  
2. If you are looking for a natural alternative to sports drinks, coconut water and bottled water are two options.  
3. If you are wanting to lower sodium in your daily diet, pure coconut water and bottled water (which is even better) are the way to go.  
4. If you want to increase your potassium intake, pure coconut water is the best of the above options.  (Coconut water contains approximately 12x more potassium than Gatorade.)

AN IMPORTANT PART OF THE CONCLUSION: "Additional study inclusive of a more demanding dehydration protocol, as well as a time trial test as the measure of exercise performance, may more specifically determine the efficacy of these beverages on enhancing hydration and performance following dehydrating exercise."  (For the above study, twelve exercise-trained men were subjected to 60 minutes of treadmill exercise.)

SOURCES and MORE READS:
COCONUT WATER STUDY (2012)
THE TRUTH ABOUT COCONUT WATER 

Case Study || "Tangle-Teezer-Like" Tool and Breakage?

I was on one of my favorite forums when I came across the following case study that was performed in India.  The report involves a tool that resembles the "Tangle Teezer" in terms of bristle arrangement and sizing.  (There are, of course, some differences between the tool in the report and the "Tangle Teezer", but the similarities cannot be neglected, in my honest opinion.)

So what is so interesting about this case study?  Well, to me, it does more than demonstrate how the use of certain hair tools may ultimately translate to breakage.  It does two more things:

1) It gives possible confirmation to those who jumped on the "Tangle Teezer" bandwagon and noticed an increase in breakage and split ends thereafter.

2) And, for my own hair care practices, it makes me think twice about using the "Tangle Teezer" on my flat-ironed hair.  (You see, I figured the problem with the tool that most people were experiencing was due to using it on textured hair.  I thought it okay to use the tool on straight hair ... until now.)  Contrary to what I initially guessed, the study was performed on patients who were not afro-textured but who had naturally straight/wavy hair.  Even on straight hair, this tool may present a problem!?!

Ultimately, patients were asked to: 

• avoid the tool (and instead use a straight comb with elongated bristles) AND 
• to change their combing habits (which involved using the tool on hair that had not been lubricated with conditioner or oil).

For the full study: TRICHORRHEXIS NODOSA INDUCED BY TOOL AND COMBING HABIT (2011)

About trichorrhexis nodosa -  "The essential abnormality of trichorrhexis nodosa is the formation of nodes along the hair shaft through which breakage readily occurs (Source)."

Study || Almond Oil Massage for Stretch Marks

Some of you have probably heard that application of cocoa butter (during pregnancy) reduces the likelihood of developing stretch marks.  Well according to a few studies published a few years ago, cocoa butter does not appear to be effective like some believe [1][2].

So how about olive oil?  Well, a study published last year does not support the application of olive oil as being effective either [3].

So what oil/butter might work then?  Research does support is that massaging with almond oil may reduce the development of stretch marks [4].

SOURCES:
COCOA BUTTER LOTION & STRETCH MARKS (2008)
COCOA BUTTER CREAM & STRETCH MARKS (2010)
OLIVE OIL & STRETCH MARKS (2012)
ALMOND OIL & STRETCH MARKS (2012)

Skin Care || Mederma vs. Vaseline for Scar Healing

If you have ever searched high and low for a cream that improves the appearance of scars, then you are probably familiar with Mederma, which is expensive.  Well, you will be happy (or upset after having spent that much money) to know that it is no more effective than petroleum jelly at scar healing.  More importantly, keeping the "wound moist and covered[1]" via petroleum jelly or another topical treatment will minimize scarring period.

So before you shell out that money for Mederma, turn to your good old Vaseline to minimize the appearance of scars.


SOURCE:
VASELINE VS. EXPENSIVE SCAR REMEDIES

Healthy Eating || Bananas and Lowering Blood Pressure

Lately my blood pressure has been lower than usual, which isn't a bad thing at all in this case.  The systolic pressure normally ranges between 101 and 110 while the diastolic pressure between 65 and 80.  However, my two most recent tests were 91/60 and 93/57. I don't recall my blood pressure ever being this low ... at least not in recent years.

So, I thought to myself, "What have I been doing differently?"  And then it occurred to me, "Well, I've been eating a lot of bananas [in smoothies].  Could that be it?"  Then I went to the internet, did some digging, and learned that there are dozens of references to the high potassium in bananas helping to lower blood pressure.  Here are a couple of abstracts worth reading:

ROLE OF POTASSIUM IN REGULATING BLOOD PRESSURE
EFFECT OF BANANA ON COLD-STRESS INDUCED HYPERTENSION

MORE READS:
BLOOD PRESSURE CHART AND TIPS

DISCLAIMER: Please speak with your doctor before changing your diet.

Healthy Eating || Becoming a Tea Drinker

I've never been a tea drinker (and, I mean never), but in mid-October, I decided to get to work on some tea I purchased under hypnosis.  (Okay, maybe I wasn't under hypnosis, but I was under something I guess.)  The tea is actually really good quality and tastes exquisite relative to your average store-bought tea.  However, what I also like about it are the health benefits.  For me, the biggest one I am noticing within myself is the stress reduction.

Below is an excerpt of the article on WebMD.  Full article: TEA TYPES AND THEIR HEALTH BENEFITS

• Green tea: Made with steamed tea leaves, it has a high concentration of EGCG and has been widely studied. Green tea’s antioxidants may interfere with the growth of bladder, breast, lung, stomach, pancreatic, and colorectal cancers; prevent clogging of the arteries, burn fat, counteract oxidative stress on the brain, reduce risk of neurological disorders like Alzheimer’s and Parkinson’s diseases, reduce risk of stroke, and improve cholesterol levels.
• Black tea: Made with fermented tea leaves, black tea has the highest caffeine content and forms the basis for flavored teas like chai, along with some instant teas. Studies have shown that black tea may protect lungs from damage caused by exposure to cigarette smoke. It also may reduce the risk of stroke.
• White tea: Uncured and unfermented. One study showed that white tea has the most potent anticancer properties compared to more processed teas.
• Oolong tea: In an animal study, those given antioxidants from oolong tea were found to have lower bad cholesterol levels. One variety of oolong, Wuyi, is heavily marketed as a weight loss supplement, but science hasn’t backed the claims.
• Pu-erh tea: Made from fermented and aged leaves. Considered a black tea, its leaves are pressed into cakes. One animal study showed that animals given pu-erh had less weight gain and reduced LDL cholesterol.

Another article (excerpt below): TEA BENEFITS

Studies of humans, animals, and petri-dish experiments show that tea is high beneficial to our health. Research suggests that regular tea drinkers -- people who drink two cups or more a day -- have less heart disease and stroke, lower total and LDL cholesterol, and recover from heart attacks faster. There's also evidence that tea may help fight ovarian and breast cancers.

Tea also helps soothe stress and keep us relaxed. One British study found that people who drank black tea were able to de-stress faster than those who drank a fake tea substitute. The tea drinkers had lower levels of cortisol, a stress hormone.

Beet Juice, Beet Smoothie: Blood Pressure & Stamina

Don't sleep on beet juice. Studies performed over the past several years suggest that drinking beetroot juice may lower blood pressure and thus have implications for the treatment of cardiovascular disease.  What is the underlying cause of this lowering of blood pressure?  It is the nitrate content of beetroot.  Additionally, other studies suggest that this juice boosts stamina, which can prolong exercising.

So how does one incorporate this vegetable into one's diet?  Well below is a recipe for a delicious, beet smoothie.  As always, please consult with your doctor before adjusting your diet or lifestyle.

{Source}

BEET SMOOTHIE -

Ingredients:
1/2 cup freshly squeezed orange juice
1 cup mixed frozen berries or blueberries
2 tablespoons granola
1/3 cup diced beet, raw (50 grams)
1/4 cup plain low-fat yogurt or low-fat coconut milk
1 teaspoon honey or agave syrup
2 or 3 ice cubes
sliced orange for garnish (optional)

Instructions:
Place all of the ingredients in a blender and blend for 1 full minute. Pour into a glass, garnish with an orange slice and enjoy.

Yield: 1 generous serving.
{Recipe Source}

SOURCES:
STUDY: NITRATE IN BEETROOT & BLOOD PRESSURE
STUDY: BEETROOT & BLOOD PRESSURE
STUDY: BEETROOT & STAMINA
STUDY: STAMINA CONTINUED

You can now find HHB on Facebook. Share with your friends:

http://www.facebook.com/healthyhairandbody.

Dietary Fiber and Colon Cancer

According to the CDC, 52.7% of the American population were diagnosed with colon cancer in 2007.  The black population showed the highest rate, followed by whites, Latinos, and then Asians. (Source)

THE STUDY ON DIETARY FIBER:
According to certain studies, including this one, intake of dietary fiber is associated with a reduced risk of colon cancer.  One theory is that "insoluble fiber from foods adds bulk to stools and moves them through the GI tract swiftly, thus reducing the contact time with potential toxins in the colon."

FOODS HIGH IN FIBER:
Foods high in dietary fiber, include (but are not limited to) whole grains, beans, raspberries, and artichoke.  For more on whole grains (including label reading), read my post here.  Please consult with your doctor before adjusting your diet.

MORE READS:
DIETARY FIBER & COLON CANCER
DIETARY FIBER & CANCER PREVENTION
SOLUBLE VS. INSOLUBLE FIBER
HIGH-FIBER FOODS
OTHER BENEFITS OF FIBER
FIBER & DIGESTIVE SYSTEM

You can now find HHB on Facebook. Share with your friends: http://www.facebook.com/healthyhairandbody.

Jojoba oil, Wax, & Relaxers

According to one study, most conditioning agents in relaxer kits break down and have no effect by the time the consumer uses them. This finding implies that using some level of added conditioning while relaxing may minimize damage. What is the best conditioner? According to a second study, jojoba oil is amongst the best at protecting the hair while relaxing (with thioglycolate-based relaxers). Polymethylene wax (in conjunction with other substances) is beneficial for the traditional NaOH- and LiOH-based relaxers.  For further reading, check out the links below.

Originally posted as part of the "Retaining the Hair You Grow" series.

SOURCES & MORE READS:
CONDITIONER BREAKDOWN IN RELAXERS & POLYMETHYLENE WAX
JOJOBA OIL & RELAXERS

RETAINING THE HAIR YOU GROW SERIES:
CHEMICAL DAMAGE

You can now find HHB on Facebook. Share with your friends: http://www.facebook.com/healthyhairandbody.

Citrus Fruits and Stroke

Sixteen years ago, my mother collapsed onto the hallway carpet of our apartment.  My sisters and I thought she had fainted, not realizing that she had just suffered a stroke.  Fortunately, she survived and recovered after months of hospitalization and therapy.  The catalyst of her stroke was high blood pressure.

A recently published study states that "citrus fruit consumption may be associated with a reduction in the risk of ischemic stroke."  It is the flavonoid, a substance found in citrus fruits, that is of interest in this association.  Further research is needed to confirm this connection, but in the mean time, you can read more about the current study in the links below.  Please consult with your doctor before making any changes to your diet; certain foods (e.g., grapefruit) can react with stroke medications. 

SOURCES
STUDY ABSTRACT
WEBMD ARTICLE
ISCHEMIC STROKE VS. HEMORRHAGIC STROKE

You can now find HHB on Facebook. Share with your friends: http://www.facebook.com/healthyhairandbody.

Study on Relaxers and Fibroids

The findings of a study at Boston University "raise the hypothesis that hair relaxer use increases" fibroids in women.  So can relaxers cause fibroids?  Further research is necessary, but the study points to a possibility.


ABSTRACT: http://aje.oxfordjournals.org/content/early/2012/01/10/aje.kwr351.short

NEWS: http://www.myfoxhouston.com/dpp/news/local/120217-study-causes-hair-scare-about-tumors#ixzz1mwiRrwTi

Amodimethicone, Castor Oil for Sheen?

According to this study, amodimethicone and castor oil are among certain substances that "increase the luster of hair." Has this been true in your experience? Does castor oil give you sheen? What about amodimethicone-based products? Do other oils/substance give your hair more sheen or shine?


MORE READS:
AMODIMETHICONE + OTHER CONES
CLEANSING AGENTS FOR CONES

Sugar, Acne, and Skin Care Recap!

Skin Care Tip of the Day: You are what you eat.  Sweets, which are proinflammatory, may contribute to acne [1] [2].  (In my personal experience, they definitely do.) For clearer skin, avoid chocolate, cookies, cake, sodas, fruit juices, and other proinflammatory foods. Consume anti-inflammatory foods like salmon, whole grain, and oranges. Also, drink plenty of water.

*************
In case you missed previous skin care topics on this blog, here is a recap:

1. Black Skin and Sunscreen
2. Hyperpigmentation in Black Skin
3. Building a Skin Care Regimen
4. Hey Med School ... Skin Care, Please?
5. Household Makeup Removers
6. Natural Skin Care ... On a Budget

and more!

Grapeseed Oil, Linoleic acid, and Body Butter Mix

Grapeseed oil contains a high amount of linoleic acid, a type of omega-6 fatty acid. (Safflower oil, my first love, also contains this fatty acid!) Linoleic acid has many health benefits when taken internally (e.g., decreases LDL cholesterol), but what is not discussed as much are its benefits externally. When applied to the skin, this fatty acid can help combat dryness by providing protection against moisture loss (1). Additionally it has demonstrated a potential to effectively reduce the size of blackheads and whiteheads (2).

*******

It's that time of year again to mix another body butter! In my original batch, I used unrefined shea butter with safflower oil. Since then, I've experimented with a couple more substances and mixtures to get a feel for what my skin likes. Here's my latest mix that I use on my elbows, knees, ankles, and lips. Enjoy!

Ingredients
grapeseed oil (high in linoleic acid, odorless)
unrefined shea butter (high in vitamins A, E; softening)
aloe vera gel (99% organic, moisturizing)
vegetable glycerin (humectant)

Melting the shea butter
Perform the following if your shea butter is too firm to mix and/or contains impurities. Heat the unrefined shea butter over the stove until melted. Stir continuously. Use low to medium heat. Should be melted in less than 5 minutes.

Filtering the shea butter
If necessary, filter the melted butter through a napkin to remove any impurities. (This depends on how unrefined the shea butter is and from where you purchase it.)

All mixed up
Allow the melted filtered butter to partially solidify at room temperature. Then mix in the grapeseed oil, glycerin, and aloe. Allow the mixture to harden overnight. The next morning, it is ready to use! (Roughly estimated portions: about 4oz of shea butter, 2oz of grapeseed oil, several tablespoons of glycerin and aloe. May adjust to achieve your desired consistency.)

SOURCES & MORE READS ON LINOLEIC ACID:
BARRIER AGAINST WATER LOSS
COMBAT ACNE
BODY FAT REDUCTION
DEFICIENCY
FOUND IN THE SKIN
GRAPESEED OIL CONTENTS