How does the use of a basic hand tool like a screwdriver affect your health?

It does not affect your level of physical activity.

Explanation:

Simple everyday activities such as washing dishes, cooking, using a screwdriver affect your health in a delicate way. This is because this type of activity does not require a great muscular effort and does not involve a great energy expenditure, since they are performed through simple movements and with little muscular resistance. For this reason, we can state that this type of activity affects your health in a minor way, but does not affect your level of physical activity.

it keeps oxygen levels low throughout the body