A beneficial exercise you can do at home.
Ba Duan Jin (八段錦) is a traditional Chinese exercise that is widely practice all over the world. This exercise/stretch help to relax the meridians in your body and help to improve your health. It contains very straightforward 8 moves!
I found a video on youtube created by Traditional & Complementary Medicine (T&CM) Unit, National Cancer Institute (NCI), Putrajaya, Malaysia.
You can skip to 1 minute and follow the doctor to do the exercise at home.
And if you can understand Chinese, I suggest that you use this video demostrated by楊柏龍:
A friendly reminder from Dr. Chou, this style of exercise should be relaxing and slow, please take it easy not to stretch too much. If you feel any pain or discomfort please consult your TCM doctors. Practice with a relaxing and peaceful mind is most important.
Noted that everyone have different range of movements, just take it easy and practice with your own pace/range.