Narrator: Muscles! Really? They don't look much use. When a muscle contracts (bunches up), it gets shorter and so pulls on the bone it is attached to. When a muscle relaxes, it goes back to its ...

Muscles can only contract and relax, so they always work in pairs called antagonistic muscles. Skeletal muscle is joined to bones. Its cells contract to make bones move and joints bend. Skeletal ...

Despite my unintentional efforts to do it myself, nasal breathing seems to be popular ... is to be able to provide the muscles with enough oxygen to produce energy, reduce fatigue and prolong ...

The study tested a nasal spray containing a potassium channel blocker, a drug designed to improve muscle activity in the ...

difficulty controlling eye muscles, or difficulty swallowing. Anyone presenting these symptoms should contact their doctor. Insider's takeaway The flu vaccine — as a shot or nasal spray — can ...

When you sleep, your muscles relax since you’re laying down ... Anything that further narrows the nasal pathway or the upper airway worsens snoring or makes you more likely to snore, says ...

Nasal anti-CD3 monoclonal antibody ameliorates traumatic brain injury, enhances microglial phagocytosis and reduces neuroinflammation via IL-10-dependent Treg–microglia crosstalk. Nature ...