Health Tip: Check Your Baby's Feet

(HealthDay News) -- A baby's feet grow quickly. During the infant's first year, it's important to check the feet regularly to be sure they are developing normally.

The American Podiatric Medical Association offers these suggestions:

• Examine your baby's feet carefully. Report anything that looks unusual to your pediatrician.
• Allow the baby's feet to move. Let baby lie on his or her back without a blanket or cover, to allow the feet to kick.
• Don't wrap or cover your baby's feet tightly -- leave covers loose so that your baby can move the feet freely.
• Move your baby frequently, and don't let him or her stay in the same position for too long. Frequent position changes put less strain on the legs and feet.

Musicians' Brain Waves Are Also in Tune

(HealthDay News) -- When they play together, musicians' brain waves harmonize along with the music, according to new European research.

They analyzed electrical activity in the brains of eight pairs of guitarists as they played a short jazz-fusion melody together up to 60 times.

The study found that brain-wave similarities within and between the musicians' brains increased as they listened to the beat of a metronome as they prepared to play, and also when they actually began playing together.

As expected, the frontal and central regions of the guitarists' brains showed high synchronization. But the temporal and parietal regions also showed high synchronization in at least half the pairs of musicians. These regions may be involved in the processes involved in the coordinated action between the guitarists, or in enjoying the music, the researchers suggested.

"Our findings show that interpersonally coordinated actions are preceded and accompanied by between-brain oscillatory couplings," said study author Ulman Lindenberger of the Max Planck Institute for Human Development in Berlin.

The findings didn't show whether the brain synchronization occurs first and causes the coordinated brain-wave readings, or whether it occurs in response to the beat of the metronome/music, and as the musicians track each others' movements and music.

The study, published in the journal BMC Neuroscience, is the first to analyze musicians' brain waves as they play together, the authors said.

More information
There's more on how the brain works at the University of Washington.

Children's Bath Products Contain Contaminants

(HealthDay News) -- Many baby and child-care products contain the chemicals formaldehyde and 1,4-dioxane, both of which have been linked to cancer and various skin conditions, a new report contends.

But the chemicals aren't listed on the labels of bubble bath, shampoo and other common products, according to the report from the Campaign for Safe Cosmetic Use.

"Companies can obviously do better, and we need to demand that they do better," said Stacy Malkan, co-founder of the Campaign for Safe Cosmetic Use and co-author of the report, released Thursday. "Many companies are already making great products that don't have any of these chemicals [and] many companies in the natural products industry have reformulated to get rid of that problem. We also know many companies are using preservatives that don't use formaldehyde."

According to the authors, the report, called No More Toxic Tub, is the first to document contamination of children's products with these chemicals. The Environmental Working Group was involved in the analyses.

Both formaldehyde and dioxane are considered "contaminants," Malkan said.

A contaminant "is a chemical that is not intentionally added to the product but is a byproduct," she said. "Those are all exempt from labeling laws ... Companies don't even have to know themselves."

Dioxane is a byproduct of chemical processing and formaldehyde is released from some of the chemicals that are used as preservatives, Malkan said.

John Bailey is chief scientist for the Personal Care Products Council, a national trade association for the cosmetic and personal care products industry. Responding to the report, he said, "These are issues that have been around for many, many years, so it's not new news. The thing that impressed me was the low levels of dioxane that were found in these products, which indicates to me that the industry is doing its job in keeping this potential contaminant down to a low level."

Bailey also said there were wasn't enough information in the report to gauge how accurate the determinations of formaldehyde levels were.

Malkan and her co-authors tested 48 bubble baths, shampoos and other baby and children's products for dioxane and 28 of those products for formaldehyde. The testing was done by an independent laboratory, Analytical Sciences in Petulama, Calif.

Among their findings:

• Almost two-thirds of the 28 products contained both chemicals, including Johnson's Baby Shampoo and Huggies Naturally Refreshing Cucumber & Green Tea Baby Wash.
• Eighty-two percent of products tested contained formaldehyde; the highest levels were found in Baby Magic Baby Lotion.
• American Girl shower products had the highest levels of dioxane among products tested.
  "The good news is that there are great products without any of these chemicals," Malkan said. "The challenge is you have to do some research to find them. It's not a simple matter of looking at the label."

According to Malkan, the U.S. Department of Agriculture "organic seal" indicates that none of these chemicals are present.

"The best advice for consumers is that simple is better, products with fewer ingredients overall," she said. "There are things consumers can do to make better choices at the store but we also need to change regulations and require companies to list all ingredients in the products and to make the safest products they can, especially products for babies."

Harmful chemicals and contaminants in children's products is a subject of continuing controversy. Earlier this week, it was announced that baby bottles made with the controversial chemical bisphenol A (BPA) will no longer be sold in the United States by the six largest manufacturers of the products.

BPA, which is found in a wide range of products, mimics the hormone estrogen and may disrupt the body's endocrine system. The chemical poses a particular threat to fetuses, infants and children because it can interfere with cell function when their bodies are still developing, public health experts say. The chemical has been linked with diabetes, heart disease, cancer and developmental delays in children.

More information
Get more information on what's in a product, or information on products containing no chemicals at all, at the Environmental Working Group's Skin Deep Database.