Blog - Page 12 of 90 - David R Hamilton PHD

A woman in her 40s with her eyes closed, breathing, with her hands over her heart. She has wavy, shoulder-length brown hair, and is wearing a red and white horizontally striped t-shirt. She is standing in a well-lit room. An office with a desk and boxes is blurred out in the background, as well as an arched door with a red brick wall.

The Heart-Breath Connection: A Simple Way to Calm Your Nervous System

By Dr David R Hamilton | January 21, 2026

Heart Rhythm Meditation is a simple science-backed way to calm your nervous system, support your heart, and lift your emotional well-being.

Row of five tablets in a horizontal row on a bright yellow background. Four of the tablets are pale yellow. The second from the right is bright pink, has a smiley face, and sunshine emanations coming out of it.

How to harness the power of the placebo

By Dr David R Hamilton | January 14, 2026

The placebo effect was once dismissed as the ‘natural course of the condition’. It meant that if a person’s condition improved when they took a placebo, it was just coincidence. We now understand things much better.

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.