Hemiptera plant. Phloem sap, which has a higher concentration of sugars and nitrogen, is under positive pressure unlike the more dilute xylem sap. Most of the Sternorrhyncha and a number of Auchenorrhynchan groups feed on phloem. Phloem feeding is common in the Fulgoromorpha, most Cicadellidae and in the Heteroptera. The Typhlocybine Cicadellids specialize in feeding on non-vascular mesophyll tissue of leaves, which is more nutritious than the leaf epidermis. Most Heteroptera also feed on mesophyll tissue where they are more likely to encounter defensive secondary plant metabolites which often leads to the evolution of host specificity. Obligate xylem feeding is a
Sugary drink tax in many developed and developing countries around the world, with 1.6 million deaths directly due to this disease in 2015 alone. Unlike sugar from food, the sugar from drinks enters the body so quickly that it can overload the pancreas and the liver, leading to diabetes and heart disease over time. A 2010 study said that consuming one to two sugary drinks a day increases your risk of developing diabetes by 26%. Heart disease is responsible for 31% of all global deaths and although one sugary drink has minimal effects on the heart, consuming sugary drinks daily are associated with