Jerry tries to manage his stress by tuning in to every sensation in his body, from the itch in his lower back to the flutter of an eyelid. Which stress-management technique is he using?

Mindfulness technique

Explanation:

Mindfulness is a type of meditation in which you focus on being intensely aware of what you're sensing and feeling in the moment, without interpretation or judgment. Practicing mindfulness involves breathing methods, guided imagery, and other practices to relax the body and mind and help reduce stress.

Spending too much time planning, problem-solving, daydreaming, or thinking negative or random thoughts can be draining. It can also make you more likely to experience stress, anxiety and symptoms of depression. Practicing mindfulness exercises can help you direct your attention away from this kind of thinking and engage with the world around you.

He is using the mindfulness technique

Explanation:

Mindfulness is a psychological that to involves the focus of one's attention to experiences of the present moment. This process involves meditative techniques and it has been widely used by clinical psychologists to help people to be able to deal with some psychological conditions. Mindfulness has also been used to ease symptoms of depression, stress and anxiety.

Specifically for stress, psychologists use the the following; mindfulness-based stress reduction program which combines meditation,mindfulness, body awareness practices and and yoga