heart Archives - Page 2 of 16 - David R Hamilton PHD

Closeup shot of two people holding hands in comfort. One is comforting the other. The hands are on the lap of the person being comforted and, from the angle, it appears that the comforter is on their knees.

The Helper’s High: How Helping Others Heals Your Heart and Immune System

By Dr David R Hamilton | December 24, 2025

We’re genetically wired to care. When we show kindness or compassion, the body doesn’t stay neutral. We receive a genuine biological boost — mentally and physically.

Young woman practicing breathing. She is sitting in a meditation position and has one hand on her heart and the other just in front of her tummy, with the palm up. She has dark shoulder length hair and is wearing a cream hooded top and blue jeans. She is on a white sofa with a white well behind her. The room is brightly lit.

The Science of Breathing: How Your Breath Controls Your Nervous System

By Dr David R Hamilton | December 16, 2025

We all breathe, but what matters is HOW you breathe. These techniques can tone the vagus nerve and even increase oxygen in the brain.

A man and woman in a well lit room, by the window, shaking hands as if meeting for the first time. The picture shows others meeting in the background so may be a meet-and-greet event or something similar. The woman is black and is wearing a grey-blue open jacket with white blouse. She is smiling. The man is wearing a cream jumper with white shirt collar showing, and is looking towards the woman.

Connection in Micro-Moments: How tiny interactions quietly upgrade your nervous system

By Dr David R Hamilton | December 10, 2025

Science now shows that even tiny moments of connection (human and / or animal) can measurably impact your nervous system, your chemistry, and your sense of wellbeing.

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.