When muscles work out, they help neurons to grow, a new study shows

Clarification since a number of the comments are reading this as &quot;strength training makes your brain stronger&quot;. This study looked at _motor_ neurons, not neurons in your brain. Motor neurons are the neurons between your spinal cord and muscle cells, responsible for transferring the signal from your brain to contract&#x2F;relax your muscles.<p>I think it was already known that working out muscles increases the innervation (the resolution of how many neurons are attached to a muscle) of the muscles, which is the mechanism for increased motor control that eg pianists have. I think this study is shedding more light on process, and providing stronger empirical evidence for that exact mechanism. Very exciting that this might be used to help people recover from nerve damage&#x2F;spinal cord injury!

Muscles need neurons to control them, so it makes sense that some feedback loop would exist. I remember reading about similar feedback loops between muscle growth and bone density (as you get stronger, bones benefit from being resilient to higher loads).<p>As I understand it, the kinetic chain goes nervous system -&gt; muscles -&gt; tendons -&gt; bones. It would make sense for all of these to make each other stronger in some way.

Two things that will improve mental clarity and sleep. Not drinking alcohol and strength training.

A brisk one our walk or hill climb of a few lifts of a 10-15lb weight weight set does wonders for reducing anxiety, stopping stiffness and soreness, getting the brain thinking.<p>The whole body is a thinking system with nerves and muscles that need feedback to work as well.

Everyone who starts working out notice this. Very fast gains in strength and resistance the first weeks due to neuronal signals improvement. And then a slow down where muscle gains take over.

Ok, I&#x27;m almost convinced to start lifting weights...<p>if they release a study showing hair growing I&#x27;ll be 100% in.

I&#x27;m not sure which part they&#x27;re claiming here is novel? Myokines&#x27; effect on neuron growth and wellbeing is a well known phenomenon, no? Or is this another instance of MIT press overstating their work?

Then why do sci injury patients need to remain still?

Motor neurons

Well dad, turns out you were right..