in the pink of health

Etymology:

• The origin of the phrase is unclear, but it may have originated from the old English word "pynk," which means "the highest point." It was later used to describe the color pink, which is associated with good health and vitality.
• Today, the phrase is often used to describe someone who is at the peak of their physical health, such as an athlete who is in excellent shape or a person who has recently recovered from an illness. It can also be used to describe overall well-being, including mental health and emotional stability.
• Overall, "in the pink of health" is a positive expression used to describe someone who is healthy, fit, and vibrant. It suggests that the person is at the peak of their physical and mental health and is free from illness or disease.