Conditions of heart, conditions of human heart, conditions of animal heart, nature which is conflicted in humans, beats in different volume and speed depending on body weight. Breathing and beating of heart are connected. A bird’s heart can beat. A bird’s heart can beat in a way as it flies through life fast and drops dead. Once you have held a scared bird, the bird is the heart. Secrets of the heart, of a heart, from my heart, the bottom of my heart, kindness of heart, you have a beautiful heart, to see someone’s heart, to replace a heart with another heart, black heart, ripped off a heart, heart surgeon doing her job, playing with my heart, out of a good heart, bless your heart, big heart big big big.

Do people suffer more than animals? Is heart a symbol of not suffering or suffering in a way it makes you grow as a person? A burning heart, a passionate organ metaphorically, there is strange connection between feeling and a muscle, blood and boiling, the pounding one, pumping, beating orderly, kicking on its own. I don’t have to think about it unless it gets sick. Conditions like not having one, having heart selectively, heart symbolising warmth. Heart of glass, heart of gold, heart of steel, no heart, heart of a dog, her heart is strong, heart is in the right place. Heart of flame, to break a heart, a heart to break, heart attack, heart failure, heartache.

https://petbirds.gr/assets/articles/440/respiratory-heart-rates-birds.pdf