"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Developing the right routine for your specific hair needs is no easy feat. Much like with skincare, there ...

For all women, estrogen is essential for sustaining the hair growth phase and boosting hair density on the scalp. But owing in large part to genetics, the follicles of some women are particularly ...

New research shows that cortisol and cortisone levels in the hair of people living with HIV were negatively associated with CD4 count, but not with HIV viral load. Among Chinese patients living with ...

In a study involving 11-year-olds, researchers have concluded that greater behavioral problems are linked to higher hair cortisol levels. The study also concluded that exposure to certain factors that ...

Measured via hair samples, long-term glucocorticoid exposure was linked to higher incidental cardiovascular disease risk. Long-term glucocorticoid levels measured via scalp hair are associated with ...

Deficiencies in nutrients like iron, zinc, and vitamin D may negatively impact hair growth. Consider getting your levels checked if you experience hair loss. Restricting calories and protein may ...

Certain foods, including onions and edamame, may help lower DHT levels by blocking the enzyme 5-alpha reductase, potentially preventing hair loss. Green tea, rich in EGCG, possesses anti-inflammatory ...