aging, immune system, and physical activity: a review of recent studies

The immune system is one of the main defenders of human health. the immune system can fight off viruses in the body and kill them. therefore, keeping the components of the immune system healthy is very important. with age, the immune system ages, and its function decreases. this decline in immune function can easily lead to viral infections in the elderly. evidence is accumulated that the best solution to maintain and enhance the immune system in the elderly is physical activity. regular physical activity can lead to healthy aging of the immune system. therefore, in this review study, we have discussed the changes in the immune system during aging and physical activity suggestions for healthy aging of the immune system. finally, future research needs are reported.