Surgical scalpel is re useable because it can be easily sanitized
A good indicator of efficient exercise is a good resting
heart rate. This enables athletes and
health buffs to meet the needs of their body with a slow heart rate. It does not take them much effort in terms of
physical activity whereas those who are out of shape would exert a lot of
effort to complete a task.
And relaxation. Hoped this helped! :)
