When the skin is exposed to UV-B light, cholesterol in the skin is transformed into vitamin D3. In general the skin does not need much UV-B energy to generate vitamin D3, and 15 minutes of strong sunshine every day is usually considered enough.
Best Answer: These are all types of drugs in one form or another. Hallucinogen is an umbrella term, meaning this includes both stimulants and depressants but mainly depressants.A hallucinogen is a drug that causes hallucinations. Examples include LSD and different types of mushrooms.llegal stimulants include meth(amphetamine)s, cocaine, crack, ecstasy. A depressant is a drug that overrelaxes your body, you are less aware and more susceptible to others' influence. Your heart rate and BP slow down, and you can lack coordination.
Best Answer: These are all types of drugs in one form or another. Hallucinogen is an umbrella term, meaning this includes both stimulants and depressants but mainly depressants.A hallucinogen is a drug that causes hallucinations. Examples include LSD and different types of mushrooms.thers include LSD and some types of mushrooms. A stimulant makes you want to move and stay up longer. Meth and cocaine are stimulants. Depressants are drugs that numb you out and make you not want to move. Alcohol is a depressant. Others include valium, and heroin and other opiates.