In recent years, biohacking has emerged as a popular trend among health enthusiasts, entrepreneurs, and tech-savvy individuals who are looking to optimise their bodies and minds using technology. At its core, biohacking involves making small, incremental changes to enhance physical and mental performance. These changes range from simple lifestyle adjustments to more advanced technological interventions. In 2025, with technology evolving at an incredible pace, biohacking is becoming increasingly accessible. Here’s a look at how technology is being used to improve health and well-being.

1. Wearable Devices: Tracking and Optimising Health

Wearable devices have revolutionised the way people monitor their health. From fitness trackers to smartwatches, these gadgets collect valuable data that can be used to track everything from daily activity levels to sleep patterns and heart rate. Popular devices like the Apple Watch, Fitbit, and Whoop Strap are packed with sensors that provide real-time insights into your health and fitness.

In addition to monitoring physical activity, these devices can also track more advanced metrics such as blood oxygen levels, ECG (electrocardiogram) readings, and skin temperature. By regularly tracking this data, biohackers can identify trends, understand their body’s response to different activities, and make data-driven decisions to optimise their health.

For example, some wearables now feature sleep tracking capabilities, offering insights into your sleep stages (light, deep, and REM) and suggesting ways to improve sleep quality. These insights help biohackers fine-tune their daily routines and improve overall well-being.

2. Neurostimulation Devices: Enhancing Brain Function

Biohacking isn’t just about improving physical health—mental performance is just as important. Neurostimulation devices, which use electrical signals to stimulate the brain, have gained popularity as a means of enhancing cognitive function. Devices like Halo Sport and Thync use non-invasive electrical pulses to activate certain areas of the brain, improving focus, creativity, and mood.

For example, transcranial direct current stimulation (tDCS) devices apply a small electrical current to specific regions of the brain, which can improve cognitive abilities such as memory, learning, and attention span. While more research is needed to fully understand the long-term effects of neurostimulation, many biohackers swear by these devices for boosting productivity and mental clarity.

3. Genetic Testing: Personalising Health Strategies

With advances in genomics, biohackers now have the ability to analyse their genetic makeup and use this information to personalise their health strategies. Companies like 23andMe and AncestryDNA offer genetic testing that can provide valuable insights into your risk factors for certain diseases, as well as your genetic predispositions to things like caffeine metabolism, sleep patterns, and athletic performance.

By understanding how their genes influence their health, biohackers can make informed decisions about diet, exercise, and lifestyle. For example, genetic testing might reveal a sensitivity to caffeine, prompting an individual to reduce their intake for better sleep or improved energy levels. Additionally, DNA testing can identify predispositions to certain health conditions, allowing individuals to take preventative measures to mitigate those risks.

4. Cryotherapy and Infrared Saunas: Revitalising the Body

Cryotherapy and infrared saunas are becoming increasingly popular among biohackers looking to optimise recovery, reduce inflammation, and improve circulation. Cryotherapy involves exposing the body to extremely cold temperatures, typically in a chamber or cryo sauna, for a short period of time. This technique is believed to help reduce inflammation, boost energy levels, and enhance recovery after intense exercise.

Infrared saunas, on the other hand, use infrared light to heat the body, promoting detoxification, relaxation, and improved blood circulation. The heat penetrates deeper into the body compared to traditional saunas, offering a more intense and relaxing experience. Both cryotherapy and infrared saunas are often used in combination to support overall health and wellness, helping biohackers achieve faster recovery times and better performance.

5. Supplements and Nootropics: Optimising Brain Power

Nootropics, or „smart drugs,” are substances that are believed to enhance cognitive function, such as memory, creativity, and motivation. Biohackers often experiment with nootropic supplements to improve mental clarity, focus, and productivity. These supplements may include natural ingredients like ginkgo biloba, rhodiola rosea, and caffeine, or synthetic compounds like modafinil and racetams.

While the effectiveness of nootropics varies from person to person, many biohackers report increased mental performance after incorporating them into their routines. It’s important to note that nootropics are not a substitute for a healthy lifestyle; they are most effective when combined with proper sleep, nutrition, and exercise.

Additionally, biohackers often turn to other supplements to support overall health, such as adaptogens to combat stress, collagen for skin health, and omega-3 fatty acids to support brain health. The key to biohacking with supplements is to experiment and find what works best for your body.

6. Light Therapy: Boosting Mood and Energy

Light therapy has long been used as a treatment for conditions like Seasonal Affective Disorder (SAD), but it’s also becoming a popular biohacking tool for boosting energy levels and improving mood. Specialised light therapy devices mimic natural sunlight, helping to regulate the circadian rhythm and improve sleep quality.

Incorporating light therapy into a daily routine can also help enhance focus and mental clarity. Devices like the Philips Wake-up Light simulate a gradual sunrise to help you wake up more naturally, while portable light therapy lamps are often used by biohackers to improve mood and productivity, particularly during the winter months when natural sunlight is scarce.

7. Smart Nutrition: Personalised Eating Plans

Nutrition plays a vital role in overall health, and in 2025, biohackers are using technology to optimise their diets for peak performance. Apps like Cronometer, MyFitnessPal, and Eat This Much allow users to track their food intake and ensure they’re meeting their nutritional goals. For biohackers, the key is personalised nutrition—tailoring their diet to support their unique genetic makeup, activity levels, and health objectives.

Some biohackers also turn to continuous glucose monitors (CGMs), which track blood sugar levels in real time. This data helps them understand how different foods affect their body and make adjustments to their diet to improve energy levels, enhance focus, and prevent crashes. These devices are often used in conjunction with a low-carb or ketogenic diet to optimise metabolic health and performance.

Conclusion

Biohacking has entered the mainstream, and with the help of cutting-edge technology, individuals are increasingly able to optimise their health, enhance cognitive function, and improve overall well-being. From wearable devices that track health metrics to genetic testing that helps personalise lifestyle choices, biohacking offers a wide array of tools for those looking to push their limits. While not all biohacking practices are supported by conclusive scientific evidence, many individuals find great success in experimenting with technology to enhance their lives. As technology continues to advance, the possibilities for improving health through biohacking are endless.