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 article in less than 5 sentences with all its key points:

"Loud snoring may be a harbinger of much bigger problems, research out this week suggests. The study found a link between severe sleep apnea in older adults and greater amounts of a specific biomarker in the brain—one that could increase people’s risk of dementia or stroke. More research will be needed to understand this connection, however.  Sleep apnea is a condition in which a person stops breathing during sleep. This causes the brain to wake the person just enough to start breathing, only for the cycle to start again once the person falls back asleep. There are two main forms of sleep apnea, obstructive and central. Obstructive apnea happens when airway muscles physically block a person’s breathing, while central apnea is when the brain forgets to signal the body to breath (a third mixed form has features of both).

Though not all snoring is linked to obstructive sleep apnea, it’s a common sign of the condition (snoring in general is caused by a narrow airway while sleeping). The constant interruptions caused by apnea also make it hard for people to get a restful night’s sleep, which can then affect their physical and mental health in varying ways.  Sleep apnea, especially when severe, has been linked to a greater risk of many other health problems, including cardiovascular disease. In this new study, published Thursday in the journal Neurology, scientists wanted to get a better understanding of how the condition could possibly affect the brain.  They looked at data collected from 140 older adults with obstructive sleep apnea who had participated in an earlier study. These volunteers had undergone an MRI brain scan and were monitored overnight in a sleep lab. They were divided into three groups based on their diagnosed degree of sleep apnea, but all of them were thought to be free of dementia at the start and end of the study period."
Response: Here are the key points from this article:

A study has found that sleep apnea can lead to very serious health problems, specifically in older adults. Firstly, there are three types of sleep apnea - obstructive, central, and a mix of both. Obstructive is when airway muscles block someone's breathing, and central is when the brain doesn't send signals to the body to breathe. The health risks include cardiovascular disease, dementia, or even strokes depending on the severity. The constant interruptions in sleep keep them from getting restful sleep which leads to these issues.

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.

Summarize this passage on the impact of exercise on mental health in less than 5 sentences: 
        'Regular physical exercise has been proven to have significant benefits for mental health. It can reduce symptoms of depression and anxiety, and improve mood and overall emotional well-being. Exercise increases the production of endorphins, which are chemicals in the brain that act as natural painkillers and mood elevators. Additionally, physical activity can serve as a distraction, allowing people to find some relief from negative thoughts. It also promotes better sleep, which can be crucial for mental health.'
user
Regular exercise benefits mental health by reducing depression and anxiety, enhancing mood with endorphins, serving as a distraction from negative thoughts, and promoting better sleep.
assistant