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.
Cold Water Swimming is Worth it. Swimming in colder water has additional benefits. Your body works harder to keep you warm, therefore boosting circulation and burning more calories. Your immune system gets a boost too as it reacts to the sudden change in temperature by increasing its white blood cell production.hether you choose to swim in a lake, an ocean, or your community pool, water activity promises many health and fitness benefits. If the exercise is vigorous, swimming can increase aerobic fitness levels by challenging the heart and lungs.