smoking cigarettes in second trimester before, during and after pregnancy can harm a baby's health. During National Birth Defects Month, learn how smoking can affect your pregnancy. https://go.usa.gov/xeM6W Smoking and Pregnancy
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doi: 10.1371/journal.pbio.0060280 52 Di PaolaM.SaniC.ClementeA

Another layer here is that smoking affects testosterone levels indirectly by stressing out your adrenal glands, which are responsible for managing your bodys hormone response
Your risk is even greater if you have high cholesterol

Smoking affects many parts of the body, including the heart, hormones, metabolism, and brain

It delivers nicotine gradually through the skin to support a smooth transition away from smoking