Environmental factors — from the air we breathe to the visual stimuli we process — play a crucial role in shaping overall health. Air quality has a notable impact on both mental and physical health and is correlated to well-known respiratory conditions like allergies and asthma. Beyond the respiratory system, poor air quality can also cause hormonal disruptions, heighten inflammation throughout the body and cross the blood-brain barrier to embed into brain tissues directly.

Microplastics are increasingly found in food, drinking water, clothing and household items — and within human tissues. These tiny particles can accumulate in the body, potentially causing inflammation, disrupting hormone balance and affecting the immune system. The long-term health consequences are still being studied but raise concerns for hormonal, reproductive and neurological health. To reduce microplastic exposure, use alternatives to plastic containers (like glass or stainless steel), filter water, avoid single-use plastics (such as disposable water bottles and to-go coffee cups), refrain from microwaving food in plastic and choose clothing and linens with natural fibers over synthetics.

It’s important to note that natural environments can provide numerous benefits to overall health. Access to parks, forests and natural landscapes (even within the city) can support mental health by reducing stress, improving mood and encouraging physical movement. Even a short walk in an urban green space or near a body of water can lower cortisol levels, support circadian rhythms and promote a sense of well-being.

A productivity-focused environment addresses the key factors of workspace optimization, including ergonomic desk and screen set-up, minimal visual and auditory distractions and effective lighting to optimize alertness and energy levels.

Keep your screens at eye level or slightly above to engage the visual pathways that enhance concentration and prevent feelings of sleepiness or fatigue; and incorporate both sitting and standing into your workflow (and take regular breaks) to improve cognition, support cardiovascular health and prevent neck and shoulder pain. Alternate between periods of sitting and standing, and try to stand for half of your workday. You can use a treadmill desk for an additional boost in alertness and cognitive focus.

Neuroscience has identified the cathedral effect, in which ceiling height can influence whether individuals are more inclined toward analytical or creative thinking. Lower ceiling environments can help by fostering focus for detailed and analytical work, and high-ceiling environments encourage more expansive thinking and creative problem-solving. Generally speaking, a minimalist room design is beneficial, as clutter-free spaces will have fewer distractions and require fewer cognitive resources to enter and maintain a focused mental state. Noise cancelling headphones, listening to binaural beats or even keeping your phone in a different room can reduce auditory distractions. 

Several protocols directly address lighting optimization for work: use bright overhead lights in the morning to maximize alertness and shift to softer, warmer lights in the late afternoon. To get sunlight exposure throughout the day, open windows to let natural light in directly, as the beneficial wavelengths cannot pass through glass — or try working or taking calls outside.

Creating an optimal sleep environment involves managing light, temperature, noise and your overall sleep setup — including the comfort of your bedding, the use of sleep-supporting devices and maintaining a space dedicated solely to rest.

Research shows that in order to fall asleep and stay asleep your body temperature needs to drop by about 1 to 3 degrees. Cooling down your bedroom in preparation for sleep or using tools like smart mattress covers that adjust the sleeping surface temperature can help maintain the optimal body temperature throughout the night. 

Noise pollution can impact sleep quality by interrupting sleep cycles and reducing deep sleep. Noise reduction solutions include keeping windows closed and using noise-reduction curtains (which can also block out light pollution), and if living in an urban or noisy area, white or pink noise machines (keep the volume as low as possible) can help mask unavoidable external noise pollution if ear plugs are not an option. 

To strengthen your brain’s connection between getting into bed and falling asleep, avoid using your bed for activities like scrolling social media or watching TV, which can confuse your body’s sleep signals. Decluttering your room not only reduces allergens and improves air quality but supports a calming, distraction-free space that promotes relaxation and signals to your brain that it’s time to unwind.