I am a collage student for the past few days i've been getting headaches when i study a lot of information what could be the cause. some how i think i'm loosing my ability to remember information i've been taking brain medicine called bio strath.

Yeast : Saccharomyces cerevisiae is the main component of this product which is a type of yeast. It is not associated with headache itself. However, if you have been studying a lot headache and other symptoms can develop. Especially if not sleeping or getting enough activity.

Bio-Strath?: Sold as an "elixir" of yeast. There are thousands of supplements advertised to do all sorts of magical remedies. Very few supplements have real research studies to show benefits (but manufacturers make claims, based on theories, animal tests, testimonials, chemical similarities, etc... but not based on real research because real research is hard to do). One's primary care doctor can help.