What are the different routes of infectiousdisease transmission?

1. Air borne- a germ that can remain alive along time in the air can be caught by breathing it in
2. Droplet: some one coughs near u and the droplets are inhaled.
3. Direct contact:can be caught by some type of fluid exchange. for example kissing, saliva or some other fluid exchange
4.Food Borne- sick person passed infection onto food they prepared and a different person eats it.
5.Indirect contact: someone is sick they touch a surface, the next person comes by and touches the surface and picks up the germ than touches their eye or mouth

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle