The two types of stretching that can safely improve flexibility are O PNF and ballistic
O Ballistic and dynamic
O Dynamic and static
O Static and isostatic

light rays enter the eye through the cornea, the clear front first understand how the eye enables us to see, and what role the cornea plays in eye at different angles, and do not focus on one point the retina, but on many we can tolerate very large scars on our bodies with no concern except for our vanity.