Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Please summarize this into two sentences; one for "dos" and another for "don'ts."

Whether you're starting a strength routine to build muscle, become a better runner, lose weight, or anything in between, choosing the right weights for strength training is a major key to getting the benefits you're after.

"If we want results, we've got to challenge ourselves—that means using a weight that is heavy enough to force our muscles to have to adapt and grow stronger. However, you don't want to choose a weight that is so heavy that you compromise your form and start engaging muscles that shouldn't be working," says Cori Lefkowith, Orange County-based personal trainer and founder of Redefining Strength.

Although there's no exact weight range for every person, there are some general rules you can follow to make sure your weight isn't too light or too heavy, but justtt right. Here's what you need to know about choosing the correct weights for your strength workout.
Response: Do choose weights that are heavy enough to force muscles to adapt and grow stronger. Don't choose weights that are so heavy they compromise form and engage muscles they shouldn't.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.

Describe two key benefits of regular physical activity for mental health.
user
Regular physical activity can significantly reduce symptoms of depression and anxiety by releasing endorphins that make you feel good. It also improves cognitive function and can help with better sleep patterns.
assistant