et more exercise. Physical activity is a known energy booster, and can also help you get a better night's sleep. If you're feeling fatigued and low on energy, a vigorous workout every day or several times each week can help you feel more energetic and get better, more restful sleep.  Try to get at least 30 minutes of physical activity every day or follow the guidelines here.  Opt for cardio workouts like walking, running, and biking.  Talk to your doctor before beginning a workout routine. Whether you're lounging at home or tied to your desk at work, stretching can help give you a noticeable boost in energy.  Stretch your arms and hands above your head as high as you can reach, and hold them for 10 to 15 seconds.  With your arms outstretched to the side, lower your torso to one side so that one set of hands touches the floor and the other set of hands points upward. Hold this for 10 to 15 seconds, then reverse to the other side. Touch your toes while your legs are as straight as possible. . If you're constantly feeling low on energy, you may not be getting enough sleep, or you may be getting poor quality sleep.  Teenagers typically need between eight and 10 hours of sleep each night.  Adults ages 18 to 64 typically need between seven and nine hours of sleep each night.  Older adults ages 65 and up typically need between seven to eight hours of sleep each night.  Limit caffeine and stimulants to help ensure a good night's sleep.  Turn off all electronics at least 30 minutes before bed to ensure a better night's sleep. . Stress has been recognized as a trigger for worsening symptoms associated with chronic fatigue syndrome, as well as general problems with sleeping and getting adequate rest.  Take deep breaths from your diaphragm to help lower your heart rate and reduce stress.  Try progressive muscle relaxation to unwind. Slowly tense each major muscle group in your body, focusing on one part of the body at a time. Hold that tense pose for about five seconds, then release the tension and relax for 30 seconds...

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Write a summary of the previous text in Vietnamese:
Tập thể dục nhiều hơn. Kéo giãn cơ thể. Nghỉ ngơi đầy đủ Giảm căng thẳng Thử uống thực phẩm bổ sung. Dùng liệu pháp thảo mộc.