Understanding the heart: an overview. Keeping your heart healthy: simple tips

Слово "сердце" на английском языке переводится как "heart". Вот пример его использования:

"He felt his heart pounding in his chest as he approached the stage to give his speech. The sound of his heart beating loudly echoed in his ears, but he took a deep breath to calm himself. With every beat of his heart, he felt a surge of adrenaline coursing through his veins. Despite the nerves, he spoke passionately from the heart, delivering his message with conviction and sincerity."