Biohacking in Singapore: an aesthetic doctor's viewpoint

Biohacking

By Dr Mavis Pak · December 2024 · 5 min read

What is biohacking, really?

Biohacking is a broad term for using science, technology, and lifestyle modifications to optimise your body's performance — from sleep and recovery to cognitive function, metabolism, and longevity. At its best, it's evidence-based self-experimentation informed by biology. At its worst, it's expensive wellness theatre with little scientific backing.

As a doctor, I'm interested in the former. Here's my honest assessment of what's worth your time — and what isn't — in Singapore.

Cold exposure (cold plunges, cold showers)

Cold exposure activates the sympathetic nervous system, increases norepinephrine, and triggers cold shock proteins that have downstream anti-inflammatory effects. The evidence for improved recovery, mood, and metabolic function is growing. Practical for Singapore? Yes — cold showers are free and effective. Dedicated cold plunge facilities are also emerging in the city.

Infrared sauna

Infrared saunas penetrate tissue more deeply than traditional saunas, promoting heat shock protein activation, cardiovascular conditioning equivalent to moderate exercise, and improved lymphatic circulation. Multiple studies link regular sauna use to reduced cardiovascular mortality. Worth pursuing if accessible.

Intermittent fasting and time-restricted eating

One of the most well-evidenced biohacking protocols. Compressing your eating window activates autophagy, improves insulin sensitivity, and has been shown to reduce visceral fat without caloric restriction. I personally practice time-restricted eating and incorporate it into patient recommendations where appropriate.

HRV (Heart Rate Variability) tracking

HRV is a proxy for autonomic nervous system health and recovery status. Tracking it with a wearable (Oura Ring, Whoop, Apple Watch) gives you objective data on how your body is responding to stress, sleep, and exercise. One of the highest signal-to-noise biohacking tools available.

What I'm more sceptical of

Not everything marketed as biohacking earns the label. Intravenous vitamin drips, for example, have very limited evidence for healthy individuals. Peptide injections outside of clinical supervision carry meaningful risks. And some "longevity" supplements are sold on early-stage animal data rather than robust human trials.

The best biohacks are often the most boring ones: sleep 7–9 hours, eat whole foods, exercise consistently, manage stress. Everything else builds on that foundation.