According to 2025 research from Medical News Today, achieving and maintaining a harder erection depends largely on diet, lifestyle choices, and overall health. Key dietary changes, like increasing intake of leafy greens, nuts, and fatty fish rich in omega-3s, can significantly boost circulation and hormone levels. Lifestyle habits—such as regular exercise, quitting smoking, reducing alcohol, and managing stress—play vital roles. Medical News Today also highlights potential supplements like L-arginine and ginseng. With a holistic approach combining diet, fitness, and mental wellness, men can experience noticeable improvements in erectile strength and sexual confidence.