Stretching keeps the muscles flexible, strong, and healthy, and we need that flexibility to support movement in the joints. Inactive muscles tend to shrink and become stiff, and when they do become active, frail muscles are more prone to damage. Stretching also stimulates your blood flow and circulation for a healthier body.
Even if you don't regularly exercise, or not at all, keeping a daily stretching program will benefit you greatly in the long run, both mentally and physically. It's not easy to stay motivated, especially when just beginning. The results will take time to show itself, so motivation and determination are key. Best is to do this with someone together for that extra discipline. You don't have to spend a lot of time on it, only a few minutes a day suffices. Here are some simple exercises: (stretches shouldn't be painful, just feel the pull)
Clutch fingers together and raise your arms all the way up, palms facing upwards. Feel the pull and hold for 10 seconds, but don't hold your breath, keep breathing. Try balancing on your toes simultaneously, if you can.
Face down, roll head to one side, hold for 5 seconds and gently roll to the other side, also face down. You can use your hands for more support. Repeat this a few times.
Loosen your shoulders by standing straight, let both arms hang at your sides, lift up both your shoulders, push to the back, push down and then push forward to complete the circle. Do this 5 times one way, 5 times the other way.
Place right hand on your left shoulder and support right elbow with left hand. Gently pull in your left hand, stretching your right shoulder. You can either bend or straighten your right arm. Hold for 10 seconds and repeat other arm.
Spread your legs with feet pointing forward until your fingers touch the floor. Bent both knees and place your hands flat on the floor. Now keep hands and feet on the floor, push up with hands and legs while blowing air out. Hold for 10 seconds. Feel that stretch? Don't worry if you can't straighten your legs, do this daily and you'll overcome your limits, and hopefully reach beyond.