25 Small Habits That (Quietly) Transformed My Health

Summary

Howon Noh describes gradually adopting 25 small habits after struggling with weight, low stamina, fatigue, and motivation. He groups them into mental and social wellbeing, movement, nutrition, and recovery.

Mental health and social connection

1. Make time for genuine conversations. Prioritize honest, personal connection over simply being busy or frequently around other people.
2. Write down specific things you’re grateful for. Several times a week, note one to three concrete things rather than relying on general positive thinking.
3. Choose enjoyable ways to move. Pick activities you’re more likely to keep doing, such as walking or a sport, while retaining harder training if it serves your goals.
4. Develop a sense of purpose. Reflect on what matters to you, write a clear statement of what you want to contribute, and revisit it regularly.

Movement

1. Walk or move after meals. Short walks after eating can be easier to fit in than one longer session. Noh suggests combining movement with existing tasks.
2. Break up sitting. Set a timer to stand and move briefly about every 30 minutes. He emphasizes taking breaks rather than relying only on a standing desk.
3. Stretch regularly. Add short stretching sessions after workouts or before bed. The video suggests spreading roughly 10 minutes of stretching across the week.
4. Set a practical step target. Noh recommends building toward about 7,000 daily steps rather than treating 10,000 as mandatory, and adjusting activity to recovery needs.
5. Include some vigorous cardio when recovered. He adds a high-intensity session about once a week, with recovery—not the calendar—guiding when he pushes hard.
6. Keep strength training manageable. He says two brief sessions a week may be sufficient for general health goals, with additional training depending on specific strength or appearance goals.

Nutrition

1. Distribute protein across meals. Noh suggests aiming for roughly 25–30 g at each of three meals, or 35–40 g per meal for people over 60.
2. Eat a wider variety of plants. Aim to include different vegetables, fruits, grains, herbs, nuts, and legumes. He proposes trying a new plant food regularly.
3. Drink water consistently. Pair water with routines, such as having coffee, rather than waiting until you feel thirsty.
4. Consider how processed foods are. Look beyond calories and sugar by checking ingredient lists and limiting ultra-processed products.

Recovery and everyday self-care

1. Keep a consistent wake-up time. He recommends waking at roughly the same time every day, including weekends, rather than trying to compensate for late nights by sleeping in.
2. Avoid using alcohol as a sleep aid. Noh says alcohol can disrupt sleep. He also gives specific abstinence and “clean eating” rules after drinking; these are his personal recommendations, not individualized medical guidance.
3. Get outside in the morning. Make outdoor daylight part of the start of the day instead of spending the whole morning indoors.
4. Get enough magnesium, preferably through food. He mentions foods such as almonds and dark chocolate as sources and connects magnesium intake with sleep.
5. Pay attention to nasal breathing during sleep. Noh says he uses mouth tape, but this may not be suitable or safe for everyone. Seek medical advice before trying it.
6. Floss regularly. Keep floss or floss picks near your toothbrush to make the habit easier to remember.
7. Try brief cold exposure if appropriate. Noh ends his shower with 30–90 seconds of cold water.
8. Use a sauna if it’s suitable for you. He describes spending 15–20 minutes in a sauna after workouts.
9. Check that your vitamin D is adequate. He highlights blood testing as a way to identify low levels.
10. Take a walk outdoors in nature. He uses lunch breaks to walk or sit near greenery, even briefly.
11. Use structured breathing before stressful moments. His example is 4-7-8 breathing: inhale for 4 seconds, hold for 7, and exhale for 8, repeating for a few cycles.

The video presents research claims alongside personal experience. Individual needs vary, especially for practices involving supplements, cold exposure, sauna use, alcohol, or mouth taping.

Presenters and sources

• Presenter: Howon Noh.
• People mentioned in personal examples: Thomas, Noh’s business partner; and his girlfriend, whose name appears as both “Toki” and “Tokyo” in the subtitles.
• Research sources cited in the video: Brigham Young University; Robert Zorn and George Wolf; a 2023 gratitude review; Harvard School of Public Health; George Washington University; a UK study of sitting behavior; the Scandinavian Journal of Medicine and Science in Sports (2024); University of Sydney (2025); the American Gut Project; Cambridge; University of Oxford; Monash University; the American Heart Association; and studies or reviews described in the video on exercise, sleep, sunlight, breathing, cold showers, sauna use, vitamin D, and time in nature. Some studies are referenced without enough details in the subtitles to identify them.