Final answer:
One way to estimate water loss and fluid needs after physical activity is to weigh yourself before and after the activity, and consume 16-24 ounces of fluid for every pound lost.
Step-by-step explanation:
An easy way to quickly estimate water loss and fluid needs following physical activity is to weigh yourself before and after the activity. For every pound lost during the activity, it is recommended to consume 16-24 ounces of fluid.
For example, if you lost 2 pounds during the activity, you would need to drink 32-48 ounces of fluid to replace the lost water.
It's important to note that individual fluid needs may vary based on factors such as intensity of activity, duration, and environmental conditions.