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.
A hallucinogen is a psychoactive agent which can cause hallucinations, perception anomalies, and other substantial subjective changes in thoughts, emotion, and consciousness .The common types of hallucinogens are psychedelics, dissociatives, or deliriants. hallucinogen is a psychoactive agent which can cause hallucinations, perception anomalies, and other substantial subjective changes in thoughts, emotion, and consciousness .The common types of hallucinogens are psychedelics, dissociatives, or deliriants.