Researchers from the University of Nevada-Reno found that coffee grounds can be used as biodiesel, so soon your car might smell like cappuccino. But that first morning cup of coffee may not be the healthiest start to your day.

Doctors suggest drinking coffee mid- to late-morning, between 9:30 a.m. and 11:30 a.m. Drinking coffee on an empty stomach can actually make you feel sleepier because caffeine spikes stress hormones and sugar causes blood glucose drops,

It can also cause your body to lose essential minerals like iron, magnesium, B vitamins, and calcium, which are vital for your nervous system and bone health.

Coffee may upset your stomach by stimulating the colon, leading to diarrhea, and additives like milk can cause discomfort if you’re lactose intolerant. It can also disrupt sleep, increase cravings for sugary snacks, and contribute to weight gain.

Caffeine can worsen anxiety, especially since stress hormones are already high in the morning. It can dehydrate you, drying out skin and making it more prone to wrinkles and other issues. Additionally, morning coffee may raise blood sugar levels, increasing the risk of weight gain and skin problems