There is no doubt that running and bike riding are fantastic ways to get exercise.  There are numerous positive effects that both of these activities can and will have on your body.  Mentally, it is just nice to get out in the fresh air sometimes.  It is important to remain safe if you go jogging or cycling along a road though.  Make sure you get yourself and wear a safety vest or jacket so that you remain highly visible to oncoming traffic.

Motorists have a responsibility to drive safely, but anyone running or riding alongside the road also has a responsibility to take their own safety to heart.  Especially in conditions of low visibility such as rainy or foggy weather, it can be difficult to spot someone until you are right on top of them.

Some people think that wearing bright clothing is enough to keep them safe.  While this is certainly preferable to wearing dark clothing, it is not nearly as effective as reflective clothing.