Health

Woman with light brown hair with her eyes closed taking a sniff of an essential oil. She has the bottle in her left hand and holds the dropper to her nose with her right hand. She is wearing an olive green top. The background is blurred out, but it's a well lit room with what looks like plants in the background.

Why Aromatherapy Works: The science of smell

By Dr David R Hamilton | January 8, 2026

There’s a well-identified link between smell sensitivity, memory, and cognition. Studies show that smell training impacts the brain and improves memory and cognition.

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Woman on a therapy bed receiving reiki. A female practitioner stands with her hands over the chest area of the client. The rom is well lit with a large window in the background. The practitioner is wearing a white uniform with short sleeves. The client has a great top and has short dark hair.

Reiki vs Placebo Reiki: How Reiki Can Reduce Pain

By Dr David R Hamilton | December 28, 2025

As a scientist, it might surprise you to learn that I trained in Reiki more…

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3 women around 40 years old laughing hysterically. They're sitting on the floor at the foot of a bed on a rug. They're all wearing jeans, have no shoes on, and are holding cups of tea or coffee. They're wearing light coloured tops - one is blue, one is white, and one is light green.

Why laughter really is the best medicine

By Dr David R Hamilton | October 22, 2025

There’s more to laughter than a good feeling. Studies now show it impacts the heart and immune system, it produces endorphins and reduces inflammation, and it’s like gym time for the soul.

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Young woman with hand on chest breathing in fresh air in a beautiful garden during sunset. She is Latino, has dark brown long hair, is wearing a brown vest with a great open blouse on top.

Why “toning” your vagus nerve can boost your health

By Dr David R Hamilton | July 23, 2025

A daily practice to support your heart, brain, and immune system There’s a lot of…

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