Other subjects explored include hydrogen bonding effects on the photochemistry of chromophores in solution, photochemical generation of silicon-centered radicals and their reactions, and photochemical processes at the air-water interface of atmospheric droplets.
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class of psychoactive drugs. It is the world's most widely consumed psychoactive drug, but unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world.
Caffeine is a stimulant, a class of drugs that increase your heart rate and make you more energetic. However, the effects of caffeine are not identical between subjects.affeine is a stimulant, a class of drugs that increase your heart rate and make you more energetic. However, the effects of caffeine are not identical between subjects.