Sports hydration
How much should you drink during exercise, and how can dehydration and hyponatraemia be avoided?
Doctor’s answer
Fluid intake should reflect sweat loss, temperature, exercise duration, and individual tolerance. After long sessions, body-weight change can help estimate replacement needs. Avoid forcing large amounts of fluid over a short period, and consider electrolytes during prolonged exercise with heavy sweating. Headache, nausea, confusion, or severe weakness requires immediate assessment.
Author: Dr. Jiwu Chen Medical review: Dr. Jiwu Chen
This content is for education. Diagnosis, treatment, and rehabilitation require an individual assessment by a sports medicine specialist.
Related questions
Can insufficient sleep increase sports injury risk and slow recovery?
Insufficient sleep can reduce reaction speed, attention, and movement control and can interfere with muscle repair, pain regulation, and recovery after training. Athletes should keep a regular schedule and allow enough sleep for their training load. Persistent insomnia, marked daytime sleepiness, or snoring with pauses in breathing warrants assessment.
Should athletes use static stretching or a dynamic warm-up before exercise?
Begin with 5 to 10 minutes of low-intensity activity, followed by a sport-specific dynamic warm-up such as high knees, lunges, leg swings, and progressive accelerations. Longer static stretches are generally better placed after training or in a separate flexibility session.
Can strength training stunt growth or damage growth plates in young athletes?
When supervised by a qualified adult, strength training with appropriate loads, sound technique, and gradual progression does not usually impair height development. The main risks come from unsupervised training, maximal-load attempts, poor technique, and equipment accidents. Maximum-lift testing should be avoided before skeletal maturity.