The cause is frequently unknown. Hypertrophic cardiomyopathy is often and dilated cardiomyopathy in a third of cases, is inherited from a person's parents. Dilated cardiomyopathy may also result from alcohol, heavy metals, coronary heart disease, cocaine use, and viral infections.
Consider the number of reps. You can also confuse your muscles by increasing or decreasing the number of repetitions you do during any given exercise. For example, if you normally do 12 repetitions, do 15 or 18 repetitions, but with a lower weight than you would normally use.
Many people confuse drug allergies and side effects. This problem occurs when a patient does not understand the difference between an allergy and side effects. For example, a person who takes aspirin and has a stomach upset, the aspirin is mistakenly viewed as an allergy, when it is really a side effect.