The deep relaxation state that you experience during float therapy assists in reducing stress by lowering cortisol levels. Blood flow is stimulated and endorphins are released. Studies have shown that float therapy can even help with depression. The endorphins released during a float last beyond the float session itself.
The extreme buoyancy that individuals experience when floating is essentially like experiencing anti-gravity. This allows those with joint or muscle pain much needed relief that they cannot get otherwise.
The combination of weightlessness, water temperature, increased blood flow, and endorphins provides relief from migraines. If migraines are caused by restricted blood flow, the increased blood flow experienced during a float session may alleviate migraine symptoms and possibly even prevent migraines from starting.
Floating can improve athletic performance by reducing recovery time between intense workouts. This helps athletes train their bodies faster and condition it harder.