Serious viral pneumonia is more likely to happen in those with a weakened immune system, such as: Babies who are born too early. Children with heart and lung problems. People who have HIV/AIDS. People receiving chemotherapy for cancer, or other medicines that weaken the immune system.
Lower back pain: How exercise helps. When you're in pain you may feel like resting, but staying active is good for your back. Exercises for lower back pain can strengthen back, stomach and leg muscles. They help support your spine, relieving back pain. Ideally, choose activities that involve endurance,strength and flexibility such as walking, swimming or cycling.
Next come the breaststroke and backstroke, then the sidestroke. Itâs good to do a few different strokes for a well-balanced workout. Even if swimming doesnât help you lose weight, it can help reduce body fat and waist circumference, while toning all major muscles (arms, shoulders, hips, legs). Swimming is also a good way for runners and cyclists to cross-train, since it uses different muscles.