Weight lifting exercises will make you able to carry grocery bags for a longer life. Resistance exercises increase the heart rate and make the lungs work more to supply the body with oxygen-saturated air.
Every decade after the third decade of life, a person loses 3-8% of the muscle mass in his body. Experts advise people to start with light exercises so as not to harm themselves, and then gradually increase the intensity of the exercises. Completing 3 sets of lifting weights weighing 3 kilograms will be a difficult task for a beginner, but it will not give the desired benefit after you commit to exercising.