Medical Astrology Medical Astrology: The Cosmic Connection to Health Discover how celestial bodies influence your physical and mental well-being, and learn to harness the power of the stars for better health. Planetary Influences on Health Sun Influences: Vitality and the heart Issues: Heart diseases, low energy Moon Influences: Emotions, fluids, and menstrual cycles Issues: Mood swings, water retention Mercury Influences: Nervous system and speech Issues: Stress, stammering Venus Influences: Kidneys and hormonal balance Issues: Hormonal imbalances, kidney disorders Mars Influences: Blood and muscles Issues: Inflammation, injuries Jupiter Influences: Liver and growth Issues: Obesity, liver conditions