The muscle-up is astonishingly difficult to perform but unrivaled in building upper body strength, writes Coach Greg Glassman. The muscle-up gets you from under things to on them.It can be a critical survival skill. We do our muscle-ups from rings chiefly because thatâs the hardest place possible.he muscle-up is astonishingly difficult to perform but unrivaled in building upper body strength, writes Coach Greg Glassman. The muscle-up gets you from under things to on them.
Most people do not know they have high blood pressure because they have no symptoms. Rarely, some people may have a mild headache when their blood pressure is high. Advanced cases of hypertension may cause these symptoms: 1  Severe headache. 2  Confusion. 3  Nausea. 4  Visual disturbances. 5  Seizure.
High blood pressure with an unknown cause is called essential, or primary, hypertension. Sometimes, an underlying disease or other condition is found to be the cause of the high blood pressure. This type, called secondary hypertension, only occurs in 5 to 10 percent of people with hypertension.