Cool Water
💧 Innate Healthy Habits · Habit 4

Some people like finishing their shower with cool or cold water as a fresh start to the day. In the Top End heat, it can be a welcome one. You don't need an ice bath or special equipment to start: your everyday shower is enough.
❄️ Why people use cold water
Alertness and focus. Many people use a cold finish to feel sharper and more switched on. When cold water hits your skin, your body releases a burst of noradrenaline and dopamine, natural chemical messengers linked with alertness, focus and mood. Studies of cold water immersion have measured big rises in both.
Cold shock proteins. When your body cools, your cells switch on a small group of helpers called cold shock proteins, which help cells respond to the cold. The two best studied are RBM3 and CIRP. They attach to RNA, the instructions your cells use to make proteins, and help regulate how cells respond to stress. Researchers are most excited about their potential to help protect brain cells, although most of this work has been done in the lab and in animals, so there is still plenty to learn about what it means for people.
Best done in the morning. Because cold water wakes you up, it's best kept to the morning or earlier in the day. A cold shower or ice bath late in the evening can leave you feeling alert just when you're trying to wind down for sleep.
Most people simply say they feel wide awake and refreshed after a morning cold finish, which is a pretty good way to start a Top End day.
At a glance
How to start
When the tap water isn't cold enough
In a Darwin build-up or wet season, the "cold" tap can come out barely cooler than the air. A few easy ways around it:
Ready for more? Ice baths
An ice bath is the next step up: a tub or bath of very cold water you sit in for a short time. If you've built up your cool-shower habit and want to try one, go slowly:
Safety first: Check with your GP before starting cold showers or ice baths if you have a heart condition, high blood pressure or poor circulation, are pregnant, or have any other health concern. Stop if you feel dizzy, numb or unwell.
These are gentle everyday habits, not treatment. If you have a health condition, are pregnant, or have any health concerns, check with your GP first.
Want help choosing your habits?
Karen, our wellness coach, life coach and DNA results reader, can look at your DNA report with you and help you build habits that suit your life.
Explore the other habits
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Morning sunlight
How to startStep outside for 10–15 minutes soon after you wake. Coffee on the verandah counts.
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Grounding
How to startA few minutes barefoot on grass, sand or soil. A calm, screen-free break in your day.
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Cool water
How to startFinish your shower with a short burst of cool water for a fresh start to the day.
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