Plz which is the only std that has a vaccine available? a. hepatitis b b. chlamydia c. hiv/aids d. syphilis

Why do vivid images create more memorable memory

Recovery heart rate is to determine how fast the heart recovers and should be measured five to ten minutes after vigorous activity. true or false

What is a possible consequence of abusing intravenous drug such as heroin? a-hiv transmission b-alcohol poisoning c-improving appetite d-lung cancer