Harvard Health Content API

Sinus symptoms can have several causes, and certain patterns may help distinguish a routine cold from a problem needing medical attention.

5-HTP is often promoted for mood support, but its effects, side effects, and place among depression treatments deserve careful consideration.

Kelp contains a nutrient that affects thyroid function, making supplement choices important for people with nodules or other thyroid concerns.

Erectile changes can arise for many reasons over time, including shifts in health, lifestyle, aging, or other medicines being taken.