Skin and Hair

Skin and Hair Articles

How much vitamin D should I take?

Scientists don’t have definitive evidence yet about how much vitamin D one should take for good health. There’s general agreement that doses above 4,000 IU daily can be toxic to adults, with lower doses toxic to kids. (Locked) More »

How clean should your skin be?

Probiotic skin products, which are designed to encourage the growth of beneficial bacteria, are promising options for treating skin conditions in the future. However, there is no scientific evidence that currently available probiotic skin products are effective. More »

When is heavy sweating a problem?

Excessive sweating is often a result because the body produces excess heat, like an overactive thyroid. Injuries to the nervous system, such as diabetic neuropathy or a spinal cord injury, also can trigger sweating in the damaged nerves area. However, the most common explanation for sudden onset of excessive perspiration is a new medication. (Locked) More »

Ask the doctor: Does psoriasis raise diabetes risk?

Some experts feel there is evidence that probiotics may help prevent or treat several conditions, such as inflammatory bowel diseases, travelers’ diarrhea, irritable bowel syndrome, and some allergies (particularly eczema). (Locked) More »

Dry skin? Moisturizers can help

Effective moisturizers contain either a humectant—which attracts water into the top layer of the skin—or an occlusive, which keeps water from evaporating off the skin, or both.  Emollients make products easier to apply. (Locked) More »