Actor Yoon Si-yoon first gained public attention through the 2009 MBC sitcom High Kick Through the Roof. While the show brought him recognition, it wasn’t enough to label him a “star.” His real breakthrough came with KBS2’s Wednesday-Thursday drama Bread, Love and Dreams, where he played the lead role, Kim Tak-goo. The drama hit an astonishing viewership rating of 50%, catapulting him into top star status. These days, with the changing media landscape, even a 10% rating is considered a huge success—so 50% is nearly unimaginable now. Ever since Bread, Love and Dreams, Yoon Si-yoon has been regarded as a true star.
Now, Yoon Si-yoon has newly joined the cast of SBS’s My Little Old Boy. Born in 1986, he’s now 40 years old in Korean age—or 456 months. As an unmarried man past the typical marriage age, his appearance on the show feels fitting. While he was a familiar face on KBS’s 2 Days & 1 Night, his appearances on variety shows have since become rare. This marks the first time he’s featured in a program for a full hour, showing not only himself but also his home and private life—hence, the public’s growing interest.
On My Little Old Boy, the show revealed Yoon Si-yoon’s daily life, which was quite unusual. Beyond his star quality, the unique way he lives drew attention. His day started and ended with alarms—he divides his day into scheduled time blocks, guided entirely by alarms. Below is a chronological account of his daily routine, from waking to sleeping.
Alarm King – Living by the Minute
7:00 AM – Wake Up
The lights in his room automatically turn on, and his alarm goes off. He gets up immediately and makes a protein shake for breakfast. He cleans up right after using each item. As he’s making the shake, another alarm sounds.
7:03 AM – Take Protein and Supplements
Right on time, he drinks the protein shake and takes his vitamins. Then another alarm.
7:07 AM – Vocal Warm-Ups
Everything he does is followed by an alarm, prompting a production staff interview.
Yoon Si-yoon:
“I schedule my alarms the day before. A monthly and weekly plan is a must. If I don’t plan my day, I might waste it doing meaningless things outside. I’m terrified of becoming lazy. I’m actually very lazy by nature, so if I don’t plan things, I won’t get anything done. Really, truly.”
Production Team:
“Do you get anxious if your schedule isn’t followed?”
Yoon Si-yoon:
“I feel uneasy. Things fall out of place. I feel most comfortable when I live according to plan—it energizes me.”
To avoid becoming lazy, he meticulously follows his alarms. Even during vocal warm-ups, he cleans the used cup immediately. He practices vocal exercises while lying near the window with a view of the Han River. Then another alarm sounds—time to run to the gym.
Bodybuilding King – Aiming for 5% Body Fat
7:50 AM – Gym Running
He begins running as soon as he arrives.
Production Team:
“You seem to have lost a lot of weight?”
Yoon Si-yoon:
“I’m preparing for Taxi Driver 3. I want to create a character that looks emaciated and sunken.”
Production Team:
“What’s your current body fat percentage?”
Yoon Si-yoon:
“About 6.5% as of last week.”
Production Team:
“What’s your goal?”
Yoon Si-yoon:
“5%. They say you need to hit 5% for visible six-pack abs.”
MC Seo Jang-hoon compares it to singer Kim Jong-kook’s 9% and Cristiano Ronaldo’s 7%. Despite already losing 10 kg, Yoon continues daily workouts to reach 5%. He runs intensely for 30 minutes without rest.
8:20 AM – Personal Training (PT)
During PT, he gives powerful shouts, revealing defined muscles and visible six-pack abs.
Breakfast in 20 Minutes
9:00 AM – Back Home
After showering, he applies lotion while admiring his muscles in the mirror. Another alarm.
9:40 AM – Breakfast Time
With a 10 AM schedule, he has only 20 minutes to cook and eat. He quickly prepares two dishes:
- Grilled Tilapia – Topped with parsley and garlic flakes.
- Low-Sodium Pollack Roe Ochazuke – Black rice with green tea powder, topped with grilled pollack roe.
Everything is done swiftly and neatly. He finishes eating in 8 minutes and immediately washes dishes in 2 minutes. Another alarm.
Always Preparing – English & Japanese Lessons
10:00 AM – English Lesson (Phone Conversation)
He practices speaking English related to an upcoming drama role.
Yoon Si-yoon:
“One day, my mom handed me two random English books. I asked, ‘What is this?’ and she said, ‘You’re on TV but your English is terrible.’ I felt ashamed. I had so many great opportunities but missed them because of language. I regretted it so much. I told myself I’ll get another chance, and I have to be ready.”
His study room is packed with English books. After an hour, his next lesson begins.
11:00 AM – Japanese Lesson (Phone Conversation)
He steadily prepares for future opportunities by learning Japanese.
Back to Acting – Character Study & Practice
12:00 PM – Acting Practice
In his home theater, he watches dramas, eats salad, pauses scenes to take notes and mimic the characters, repeating the process.
Even Rest is Regulated
1:00 PM – Game Time
He enters his game room for the first break of the day. Just 15 minutes in, the monitor shuts off.
Yoon Si-yoon:
“If I don’t limit game time, it never ends. I preset the monitor to turn off after 15–20 minutes.”
Even his rest is planned and limited.
Outfit Planner – Planning a Month of Outfits
He heads to his closet, where clothes are neatly sorted by color and type. He lays out outfits for June, referencing style photos he discussed with his stylist. Every outfit—casual to TV appearances—is preplanned.
Production Team:
“Are you into fashion?”
Yoon Si-yoon:
“No, I was once picked as a worst dresser. I just want to try different looks in my 40s. I’m not confident, so I plan a whole month of outfits in advance with my stylist.”
His favorite accessory? Pearls. Everything—black jumper, white shirt, leather jacket—is matched with pearl necklaces. After trying on outfits, he documents each look on a calendar. His goal is clarity and confidence in his style.
Car Cleaning Master – Cleans Even the Gas Cap
He heads to a self-service car wash, wearing a jumpsuit and apron, equipped with a full set of tools. He uses noise-canceling headphones and lines up the cleaning items neatly. The detailed process includes:
- High-pressure water spray
- Pre-wash with cleaner
- Tire cleaner and brushes (both thin and wide)
- Snow foam coating
- Car shampoo wash
- Cleaning even the gas cap
- Polishing and waxing
This process takes 2 full hours—for the exterior only. The 12-year-old white car looks brand new.
Cleanliness King – Cleans After Cleaning
8:00 PM – Back Home
He washes all the car-cleaning tools in the bathroom, then deep cleans the entire bathroom: mirrors, toilet, sink, bathtub. He finishes with a gleaming floor. MC Seo Jang-hoon jokes that Yoon could run less and eat more instead.
Abstinence King – Drinks with His Nose Only
He prepares three pieces of finger food and sets out a whiskey bottle. Using wood chips and a dome, he smokes the whiskey glass for aroma—then just smells it, doesn’t drink. He uses a dropper to dab his tongue lightly, then dumps the rest.
Yoon Si-yoon:
“Robert Downey Jr. only smells whiskey during filming, so I tried it too. Alcohol hinders fat loss more than food. I’ve been alcohol-free for six months, and only then did my body fat dip below 10%. I’m terrified of becoming lazy or self-indulgent, especially when I’m so fortunate.”
He even washes the whiskey glasses right after use—three used, despite not drinking.
Self-Control Box – Ending the Day with Discipline
Before bed, he takes out a “lock box” for his phone.
Yoon Si-yoon:
“I lock away my phone at night. The screen triggers dopamine and keeps me up. So I just lock it and sleep.”
He locks his phone, puts on a sleep mask, and ends his day at 10:00 PM.
From wake-up to bedtime, his day is packed with discipline and intention. It’s a level of dedication that few can match. Yoon Si-yoon lives every moment deliberately, in pursuit of self-betterment
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