What are some ways to improve how long you can hold your breath underwater?

Question

I read somewhere that tiger woods can free dive for four minutes. I can barely manage two. Any ideas on how I can extend my time underwater?

And I swear to god, anyone who puts down get a scuba tank is getting a negative thumbs down thingy.

Answer 1

Practice in bed.  Calm down before you do it to get your heart rate down.  Don't move when you're under water.

Answer 2

You have to do it slowly, like do laps underwater and try to go further and further each time.

Answer 3

may i suggest a website? maybe google? your best bet would just be to practice and you don't have to be in the water. try holding your breath at work or driving down the road, bu make sure you don't pass out goin down the road