In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

It is important to (1)________ a healthy lifestyle to maintain good physical and mental well-being. Regular (2)________ helps improve cardiovascular health and boosts the immune system. Eating a balanced diet rich in (3)________ vitamins and minerals is crucial for overall health. Additionally, (4)________ stress through activities like yoga or meditation can enhance mental clarity. Getting an adequate amount of (5)________ each night is essential for restorative activity and optimum bodily functions.

Select the most appropriate option to fill in blank number 1.

The correct answer is adopt.

To determine the most appropriate word for blank (1), let us analyze the context of the sentence:
"It is important to (1)________ a healthy lifestyle to maintain good physical and mental well-being."

The blank requires a verb in its base form following "to" (forming an infinitive: "to [verb]") that collocated correctly with "a healthy lifestyle". Let us evaluate the options:

1. adopt (verb): This means to choose to follow, use, or take up a option, practice, or lifestyle. To "adopt a healthy lifestyle" is a common and grammatically correct English collocation meaning to start living in a healthy way.
2. adeptly (adverb): This is an adverb meaning doing something in a skilled or proficient manner. We need a verb here, not an adverb.
3. adapt (verb): This means to adjust or modify something to fit new conditions. While it is a verb, one adapts to a situation rather than "adapting a lifestyle" in this context.
4. adept (adjective/noun): This means very skilled or proficient at something. It does not fit grammatically as a verb in this position.

Therefore, the verb adopt is the most appropriate word to fill in blank 1.