This is an issue that deserves attention, as research examining iron levels in Americans shows that more people have iron levels that are considered too high, than levels that are deficient. In one study of more than 1,000 people, only 3 percent were iron deficient, but 13 percent had iron overload. 1. What are the Health Risks of Too Much Iron?
Clonus is a sign of certain neurological conditions, particularly associated with upper motor neuron lesions involving descending motor pathways, and in many cases is, accompanied by spasticity (another form of hyperexcitability).
Spasticity is a condition in which muscles are tight or stiff. For example, your hand may stay clenched in a fist or your knee may be hard to bend. At times the muscles may jerk or spasm uncontrollably.It can interfere with your ability to move, speak, or walk normally.pasticity usually occurs because of damage to the part of the brain or spinal cord that controls voluntary movement. It's often the result of a spinal cord injury, a stroke, or a disease such as multiple sclerosis, cerebral palsy, or amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease).