Answer:
Caffeine is a central nervous system stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world. There are several known mechanisms of action to explain the effects of caffeine.
Cocaine is a tropane alkaloid and stimulant drug obtained primarily from the leaves of two coca species, Erythroxylum coca and Erythroxylum novogranatense. It is most commonly used as a recreational drug and euphoriant
Amphetamine is a central nervous system stimulant that is used in the treatment of attention deficit hyperactivity disorder, narcolepsy, and obesity. Amphetamine was discovered in 1887 and exists as two enantiomers: levoamphetamine and dextroamphetamine.
The pineal gland releases melatonin
Answer:
1,000-2000 IU per day
Explanation:
The recommended value by health professionals is a lot higher because this value is used for a healthy lifestyle. The Dietary Reference Intake for Vitamin D (600 UI) is the minimum required for men and women. Many people need almost double that amount to keep up with their lifestyles.
Vitamin D is a vitamin that is made by the body when exposed to sunlight. In areas that do not get much sunlight hours, it is recommended to take supplements.
Answer:
roller hockey,
Explanation:it is a type of hockey played on land on roller skates.It also has different rules.
well it happens when a womans egg gets fertilized from a man
