Why do lean people sink more in water?

General Forum
1

I’ve noticed that my lean friends struggle to float while others stay on the surface easily. Is this because of muscle or something else?

2

It’s mostly due to muscle density. Muscle is denser than water, so it sinks, unlike fat, which is less dense.

3

Lorin said:
It’s mostly due to muscle density. Muscle is denser than water, so it sinks, unlike fat, which is less dense.

That makes sense. So body composition plays a huge role in buoyancy?

4

@Shay
Exactly. A mix of fat, muscle, and lung capacity determines how well someone floats or sinks.

5

Saltwater also makes floating easier. It’s denser than freshwater, so everyone feels more buoyant in the ocean.

6

I’ve always had to keep moving in water to avoid sinking. It gets exhausting.