loosens

"By pulling up, it loosens anything tight and stuck, and it draws blood to the area."

Nervous and tentative at first — Marcus hasn’t traveled a lot, and this hot-shot British chef is kind of a big deal — he gradually loosens up.

Takes another deep breath, loosens his harness a little.

Research from the Guardian external-link in 2023 found that pregnancy also "elevates levels of hormones such as relaxin, which loosens ligaments and joints, potentially increasing the risk of injury".

Biden can also come across as stiff at times when standing and reading from a teleprompter, but immediately loosens up and appears more comfortable when he switches to a hand-held microphone mid-remark.