Newswise — Starting a family can be a stressful process, and there are things that can affect your plans that you may not have considered. According to the Centers for Disease Control and Prevention (CDC), an estimated 18 percent of men who sought help with a fertility specialist were diagnosed with a male-related infertility. Here are some factors from the Texas A&M College of Nursing that can impact your fertility.

Ban briefs; go boxers Elevated temperatures can impair sperm production and function. Although studies are limited and inconclusive, if you’re trying to start a family, switch from briefs to boxers. The change won’t happen right away; it will take your body about six to eight weeks to adjust to your new wardrobe.

Skip happy hourDrinking alcohol can lower testosterone levels, cause erectile dysfunction and decrease sperm production. Prolonged drinking can also lead to liver disease, which can impact fertility.

A study published in 2014 suggested that drinking just five units of alcohol every week could reduce the quality of a man’s sperm, and that more alcohol correlated with weaker quality of sperm. It’s also good practice for your partner’s pregnancy, as men’s alcohol consumption can make it more difficult for a woman to stop drinking, which is vital for the health of the baby.

Kick the buttMen who smoke may have a lower sperm count than those who don’t. Even secondhand smoke has been shown to reduce fertility in both assisted and non-assisted pregnancies. In 2016, a study showed that smoking was associated with decreased sperm count, decreased sperm motility and poor sperm morphology.

If you’ve had trouble quitting in the past, talk to your health care provider for tips, as some quitting methods may provide small doses of nicotine that can affect fertility.

Watch your weightBeing overweight or underweight can have negatively impact a man’s sperm count and can decrease his libido. According to the Centers for Disease Control and Prevention (CDC), an estimated 70 percent of adults were overweight or obese in 2014, and an estimated 1.7 percent of adults were underweight as of 2010.

The first step to improving your weight is managing your diet, so be sure to talk to your health care provider about ways to improve your nutrition intake.

Go get checked There are many different underlying conditions that can affect male fertility, such as tumors, celiac disease and varicocele—a condition in which the veins are large and cause the testicles to overheat. If you’ve been diagnosed with any of these conditions, or are worried about any conditions you may have, talk to your primary care provider about what options are available for you.

About Texas A&M Health Science CenterTexas A&M Health Science Center is Transforming Health through innovative research, education and service in dentistry, medicine, nursing, pharmacy, public health and medical sciences. As an independent state agency and academic unit of Texas A&M University, the health science center serves the state through campuses in Bryan-College Station, Dallas, Temple, Houston, Round Rock, Kingsville, Corpus Christi and McAllen. Learn more at vitalrecord.tamhsc.edu or follow @TAMHSC on Twitter.