Actor Park Bo-young, who has left a global impression through the Netflix original Daily Dose of Sunshine and the film Concrete Utopia, recently captivated fans by sharing updates from a vacation in Hawaii. In the photos, Park is seen enjoying a leisurely day at the beach, showcasing a remarkably slim figure in her swimsuit.
Known for maintaining a height of 158cm and a weight of 41kg, Park’s appearance in the 2025 hit Unknown Seoul—where she played a challenging double role—reaffirmed her status as a global OTT powerhouse. Fans have responded with awe, questioning how she maintains such a petite yet toned silhouette. Park has previously credited her look to "thorough self-management," focusing specifically on core strength and recovery.
The Power of Core Discipline
Park Bo-young’s discipline is woven into her extensive filmography. From the high-energy action of Strong Girl Bong-soon to her recent role in Light Shop, she has consistently built the stamina required for both physical and emotional performances.
The secret to her "ageless beauty" lies in her core—the group of muscles supporting the spine, pelvis, and abdomen. Strengthening these muscles does more than just maintain a slim figure; it improves balance, stabilizes the spine, and corrects posture.
You can effectively train these muscles at home:
The Bridge: Lie on your back with knees bent and feet hip-width apart. Tighten your abdomen and glutes as you lift your hips. This movement builds the core and lower body. However, it is vital to engage the abdominal muscles rather than straining the lower back to avoid injury.
The Plank: This full-body exercise involves holding a straight line from shoulders to ankles while supported by your elbows. Planks strengthen the core, arms, and shoulders while alleviating neck and back pain. A study in the Journal of the Korean Society of Physical Medicine found that patients practicing planks three times a week for a month saw significant reductions in abdominal thickness and lower back pain.
Half-Body Baths: Metabolism and Recovery
In past interviews, Park revealed she frequently uses half-body baths to reduce swelling and suppress her appetite—even setting photos of herself at her "chubbiest" as her phone wallpaper to maintain focus.
A half-body bath involves immersing only the lower half of the body in water heated to 37–39°C for 20–30 minutes. This practice raises body temperature, relaxes muscles, and promotes blood circulation. As metabolism accelerates, it helps the body burn fat and reduce water retention. Adding aromatherapy oils can also soothe the nervous system and improve sleep quality.
Precautions for Half-Body Baths:
Limit to 30 Minutes: Prolonged soaking can lead to a temporary drop in stamina, dizziness, or dehydration.
Avoid Alcohol: Never take a half-body bath after drinking, as it can strain blood pressure regulation and the heart.
Medical History: Individuals aged 70 and above, or those with cardiovascular conditions like angina or a history of stroke, should exercise extreme caution, as the rapid relaxation and contraction of blood vessels can worsen these conditions.
