Pop music phenomenon Jennie is freaking out a little bit.

She always does before she begins her favorite wellness activitycold plunging.

Doing the cold plunge right after was a natural thing for me, she says.

That doesnt mean that the bone-chilling practicethought to reduce inflammation, improve circulation, and relieve stresscame easily.

The first time was a surprise, Jennie admits with a laugh.

But instantly, I felt like the soreness and tightness of my body went away.

It wasnt just beginners luck.

I set an alarm for two minutes and thirty seconds, she says.

Thats not all the singer tells herself as she breathes through the tingles and pain the cold practice brings.

I often tell myself to toughen up, she says.

You feel ready to go!

It made me believe that I am tougher than I think I am.