A study (https://pubmed.ncbi.nlm.nih.gov/22234399/) suggests regular exercise and physical activity increase testosterone hormone levels and sperm quality. This can improve fertility. While you may think too much exercise leads to greater results, that is not the case. Overexercising can wreak havoc on your testosterone levels, negatively affecting your fertility.
Eat Foods High in Vitamin C
Vitamin C has antioxidant properties that prevent oxidative stress. According to one study (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472207/), oxidative stress reduces sperm motility and damages sperm DNA, leading to male infertility. Foods to keep an eye on include citrus fruits, broccoli, potatoes, Brussels sprouts, peppers and strawberries. You can also take vitamin C supplements after consulting with your doctor or physician, though.
Manage Your Stress
Stress leads to increased production of the hormone cortisol as a coping mechanism. According to one study (https://pubmed.ncbi.nlm.nih.gov/24431964/), your testosterone levels will likely reduce when your cortisol levels stay up for a long time. So, how can you manage your stress? Try walking outdoors, meditating or connecting with loved ones.