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Yes, some people are born with white or near-white hair, while others get white hair later when pigment cells stop coloring new strands.

No, menstrual flow does not harm a male partner, though blood contact can pass infections in rare exposure settings.

No, a pescatarian diet excludes chicken and other poultry, while allowing fish, seafood, and often eggs and dairy.

Yes, omega-3 may help some shedding tied to low intake or scalp inflammation, but it does not fix the main causes of pattern hair loss.

No, vitamin B12 has no set upper limit, but large supplement doses can still cause side effects and deserve a closer look.

Yes, some ondansetron tablets may be crushed, but orally disintegrating tablets should be placed on the tongue and left to melt.

No, onion juice has only limited evidence for patchy alopecia areata, and it is not a proven fix for common scalp hair thinning.

Yes. High doses are usually low-risk for most people, but too much supplemental B12 can still cause side effects and needs a clear reason.

Yes, onion juice may help patchy regrowth in some people, but evidence is thin and it is not a proven fix for common thinning.

Onion juice may help patchy regrowth in a small study, but proof for common scalp thinning is still limited.