When you exercise, the cells in your brain (and the rest of your body) start firing, becoming more energized. You also produce more serotonin and dopamineâboth crucial in mood elevation. Some credit these chemicals with whatâs known as the ârunnerâs highâ, common in endurance athletes. But we do know they make you feel good, and a sense of wellbeing and happiness can increase your physical health in turn.
You're most likely to get mononucleosis with all the signs and symptoms if you're an adolescent or young adult. Young children usually have few symptoms, and the infection often goes unrecognized. If you have mononucleosis, it's important to be careful of certain complications such as an enlarged spleen.
Mono usually comes on over a few days. It begins with flu-like symptoms -- fever, headache, and general malaise and lethargy. After a few days, the lymph glands begin to swell, although this symptom is not noticeable in everyone.Swollen glands of the neck are especially typical of mono.Most people develop a sore throat, which can be very severe, with inflamed tonsils. A fever -- usually no higher than 104 degrees -- also can develop and may last up to three weeks.ononucleosis, often referred to as mono, is a very common viral illness. About 90% of people over 35 have been infected with it, probably during early childhood, and have antibodies to the virus in their blood.