Jun Hyun-moo, who is working to improve immunity on 'I Live Alone,' challenged himself to a cold plunge following Jennie.

On the 9th, MBC's entertainment show 'I Live Alone' unveiled Jun Hyun-moo's 'Immunity Improvement Project' as part 2 of the spring rainbow refresh special.

On that day, the main character of part 2 of the rainbow refresh special was Jun Hyun-moo. Jun Hyun-moo, upon waking up at 6 a.m., poured lukewarm water immediately. When Ahn Jae-hyun saw Jun Hyun-moo with lip tape on, he asked, 'Pacifier?' and Jun Hyun-moo explained, 'I've been using the pacifier since the day after I had laryngitis. I continue to put it on while I sleep.'

Jun Hyun-moo shared, 'Overall, my energy has significantly diminished. My immunity has dropped since laryngitis, and it has continued for a long time. In the past, I would recover quickly after getting a few shots at the hospital when I got sick, but these days, my basic stamina has declined, so it definitely takes longer to recover, which affects my work.' Upon hearing this, Park Na-rae also noted, 'Even after getting an IV, it lasts more than a week.'

'It seems to be due to my age, but I also think it's because of my immunity. I've realized how important immunity is, so I will continue the immunity enhancement project. I will look for methods to improve from diet to lifestyle habits,' he said.

As Kode Kunst observed quietly, he wondered, 'Why do your eyes keep getting bigger?' Ahn Jae-hyun replied, 'It's because you've lost weight.' To this, Jun Hyun-moo said, 'Someone told me I resemble Hachuping,' which drew laughter.

To improve his immunity, Jun Hyun-moo added ice to a bathtub filled with cold water. As he checked with his phone to see if this method was correct, Kode Kunst smiled and asked, 'Whose life are you stealing now?'

The video Jun Hyun-moo found was none other than Jennie's. Kode Kunst said, 'I hope you haven't even watched a video of Jennie,' but Jun Hyun-moo revealed, 'Jennie is one of the celebrities that governs my life. I bought the same audio equipment, and I also bought the same butt soap following Jennie,' which shocked the members of Rainbow.

'What is butt soap?' and 'Why did you buy it?' Jun Hyun-moo explained, 'It's soap that is only used on the butt. It makes it really soft.' In response, Kian84 said, 'I can't believe I need to know about your beautiful butt.'

The challenge Jun Hyun-moo took on to improve his immunity was none other than the cold plunge. The cold plunge is popular not only among international celebrities like Jennie and Lady Gaga but also among soccer players Son Heung-min and Hwang Hee-chan.

Regarding this, Jun Hyun-moo said, 'I have never entered cold water even when I go to the sauna. It doesn't suit me. Since Jennie did it and found it effective, I thought I would give it a try just this once,' adding, 'I attempted it for the first time because of just Jennie.'

He was to stay submerged for 2 minutes and 30 seconds. Jun Hyun-moo, struggling while shirtless, immersed his body in the cold water. He said, 'It felt like my cells were awakening. It feels much better for blood circulation than when I take a hot bath. My body has definitely changed. It feels like I've received a new body. I usually have flat feet and my calves retain water, which always causes me pain, but after doing this, my calves felt refreshing,' which caught attention.

[Photo] Captured from the broadcast screen of 'I Live Alone.'

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