Search results for Hair

“Time-restricted eating exploits the body's innate 24-hour patterns – the genetically encoded molecular clocks present in every cell, from the complex (liver cells) to the simple (hair follicles) – and provides the body an essential downtime where it can focus on DNA and cellular repair and restoration rather than digestion.”

“Evidence in healthy participants does not show kidney damage at studied doses, although kidney disease, pregnancy, medications, or unexplained laboratory changes warrant clinical guidance. The hair-loss concern comes from one small crossover study of 20 college-aged male rugby players.”

Dr. Rhonda Patrick answers audience questions on various health, nutrition, and science topics in this Q&A session.

“Bodyweight distribution and metabolism in polycystic ovarian syndrome Polycystic ovarian syndrome, or PCOS, is a hormonal disorder characterized by menstrual irregularities, metabolic dysfunction, excess hair growth, acne, and obesity.”

“To clarify the picture, researchers systematically reviewed human studies examining how individual foods, nutrients, and supplements influence hair health. They analyzed 17 studies involving over 61,000 participants, mostly women, spanning childhood to older age.”

“In a study published in 2007, researchers examined whether supplementing with a bioavailable form of silicon could improve hair quality. The trial included 48 healthy Caucasian women with fine hair that had not been colored or permed.”

“Both groups experienced a modest increase in total testosterone—about 15%—regardless of which supplement they consumed. Free testosterone dropped slightly in both groups, while levels of dihydrotestosterone and hair growth measurements remained stable.”

“However, a recent review found that some medications may promote gray hair re-pigmentation. Researchers reviewed 27 studies and case reports of medication-induced gray hair re-pigmentation, totaling 133 patients.”

“Researchers studied the effects of cinnamic acid, a component of cinnamon, on hair growth. First, they treated dermal papilla cells (cells involved in hair formation and development) with varying concentrations (0 to 2,000 micrograms per milliliter, μg/mL) of cinnamic acid.”

“The authors digitally mapped pigmentation patterns in the hairs over time and assessed protein content in the hair shafts. Some of the participants completed a retrospective stress assessment questionnaire using a life event calendar, in which they recorded major events over a given time.”