The NIH recommends that adults take part in physical activity 20 to 60 minutes per day at 60 to 90 percent of maximal heart rate, seven days per week, to improve cardio-respiratory endurance. FALSE
A heartbeat that exceeds 100 beats per minute is referred to medically as tachycardia (tak-ih-KAHR-dee-uh). Tachycardia can result from a variety of different heart rhythm disorders (arrhythmias). Not always is a rapid heartbeat cause for alarm. Abnormal heartbeats or heart rate are a reflection of the body's cardiac health. This can occasionally be lethal if left untreated and ignored. A doctor's prompt action is required in potentially harmful conditions where the heartbeat exceeds 120–140 beats per minute or drops below 60 beats per minute.
Menopause. Ovulation is something that happens when the female reproductive cells are deposited in the uterus. Menstruation is the period that normally happens once in a month, and osteoporosis is a bone disease.
