Exercises using a cable puts muscles under a constant tension. With free weights, the angle of joints are often changing, thus the resistance on the muscle is also changing. Under constant tension, blood flow is often increased, thereby resulting in quicker and bigger pumps.
News. Premature birth causes blindness among babies. Consultant eye surgeon at the Eye Hospital and co-ordinator of childhood blindness, Dr. (Ms.) Mangala Gamage said the new cause for blindness is Retinopathy of Premature babies (ROP), a disease of the retina among prematurely born babies.
The elevated blood pressure causes damage to the blood vessels in the retina resulting in bleeding or fluid seepage. This can further lead to separation or detachment of the retina resulting in blindness. Retinal degeneration can also cause blindness and results in a loss of the light sensory cells in the retina. Though this is generally a slow and progressive disorder, the final stages of loss of vision can seem sudden.