Check out the updated version of the Army PFT. The Army's Basic Training Physical Fitness Test is a three-event physical performance test used to assess endurance. It is used to measure a your physical strengths, abilities, and cardio-respiratory fitness.
1 doctor agreed: See ophthalmologiist: Light flashes in the periphery of your vision are usually caused by either a problem in your eye called vitreous detachment or ocular migraine. You need to see an ophthalmologist soon for a dilated eye exam to be sure your retina is OK.
Tail flashing is an important visual signal used by squirrels to indicate alarm. It is one of the first signals seen when squirrels discover the location of a disturbing stimulus. When the stimulus is more threatening, the tail flashing is accompanied by vocalizations.