a. Fit as a fiddle - To be in excellent physical health.
Example: "Even in his old age, he's fit as a fiddle."
b. Sick as a dog - To be very ill or sick.
Example: "After eating that spoiled food, I felt sick as a dog."
c. Catch some Z's - To get some sleep or rest.
Example: "I'm going to catch some Z's before the big presentation tomorrow."
d. Mind over matter - The power of one's mind to overcome physical challenges.
Example: "With a positive mindset, she proved that it's mind over matter."
e. An apple a day keeps the doctor away - Eating healthy can help prevent illnesses.
Example: "S