Sensitivity to foods may increase when they are consumed with, or around, the same time as alcohol.
Bacteria buildup in open tubes of mascara leads to eye infections.
Caffeine can produce the same symptoms as anxiety neurosis: insomnia, muscle twitching, headache, restlessness, and irritability.
Kidney failures can be brought on by overuse of analgesics.
Standard, narrow, hard leather bicycle seats may compress nerves in the pubic area. This could lead to impaired sexual responses in men and (possibly) women.