The answer would be nodding.
First class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side you can't get a reaction unless something else causes a reaction.
Make it more attainable by setting a more realistic expectation.
Answer:
engage in regular physical activity
Explanation:
the others are too specific and dumb
Answer:
Not enough information is given but my mom is in the medical feild and she says that a condition common with age is presbyopia. It causes the leanses in your eye to become less flexable and less able to thicken therefore less able to focus on near by objects. Another is catteracts which I assume you already know about so I will not explain.
Explanation: