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Post-exposure prophylaxis, also known as PEP for short, is a medicine that can prevent people from contracting HIV. It can be used in emergency situations by people who don’t already have human immunodeficiency virus (HIV) but may have recently been exposed to HIV. PEP can prevent HIV from spreading through your body after a possible HIV exposure. PEP should be taken within 72 hours of a potential exposure. The sooner you start PEP, the more effective it is at protecting against an HIV infection. 

Pre-exposure prophylaxis, also known as PrEP for short, is a medicine that can prevent people from contracting HIV. This medication is taken by people who don’t have human immunodeficiency virus (HIV) but are at high risk for being exposed, or coming into contact with, the virus. 

PrEP blocks the enzymes, or proteins in the blood, that allow HIV to multiply. To block these enzymes, you must build up enough PrEP in your bloodstream. Once PrEP has reached a certain level in your bloodstream, it can prevent HIV from replicating in your body.

Sexually transmitted infections are infections that are transmitted from person-to-person during anal, oral, or vaginal sex; genital skin-to-skin contact, or when fluids are exchanged from one person to another. This can occur via direct contact with the fluid or through the mutual use of sex toys.

The main symptom of headaches is head pain. Though the majority of headaches are benign or not life-threatening, some may be an indicator of a more serious health issue.

Stress is a normal psychological and physical reaction to the demands of life. Work, school, relationships, and daily hassles can often serve as stressors, or sources of stress. Stress isn’t necessarily a bad thing. Good stress, or eustress, pushes us to work harder. When this stress becomes overwhelming or hard to manage, it’s called distress and can impact your health.