Well generally it will be a positive impact (Of course this generally depends on what the "Physical activity" is, it is generally good, reason being while exercising causes the brain to release endorphin's, as well as helping relax muscles and relieve physical tension, which can greatly help with stress.
A prepare before the meeting
If my child were to come to home from school, telling me about something in regards to a culture that is not true. I will explain to my child the difference of truth and myth regarding other cultures. I will explain to him or her about other people having to believe about certain things because of the culture they were born to. I will differentiate and give an example about true things that is currently happening and had happen and about the myths that were told and not yet proven.
Epistaxis is the word you are looking for
STDs are infections spread from person to person during sexual contact.
