In usage, it may refer to: 1  Several species from the genus Lutjanus 2  : Lutjanus campechanus, Northern red snapper, commonly referred to as red snapper in the Gulf of Mexico and western Atlantic Ocean. Lutjanus purpureus, Southern red snapper, is one of several Lutjanus species called red snapper (or by the Spanish name huachinango) in the Caribbean. 2  Red snappers from Southeast Asian waters may be Lutjanus species.
of course you can have a heart attack at 30, in fact that is happening more and more often. Due almost entirely to the fact that too many people are eating too much and not exercising nearly enough. Other risk factors are family history of heart disease, smoking, diabetes.......lots of risk factors.t is certainly possible to have a heart attack at age 30 or younger. Several factors come into play, including family history, gender, history of smoking, hypertension, and cholesterol level. Click on the link below to calculate your risk. Source(s): http://hp2010.nhlbihin.net/atpiii/calcul...
This has to do with how fit you are and your maximum heart rate, which is 220 bpm minus your age. For example, if you are 30 years old, your maximum heart rate would be 190 bpm (since 220 minus 30 equals 190).The American Heart Association recommends that you do exercise that increases your heart rate to between 50 and 85% of your maximum heart rate.This range is your target heart rate zone. They recommend getting at least 30 minutes of moderate to vigorous exercise most days (or a total of about 150 minutes a week).his has to do with how fit you are and your maximum heart rate, which is 220 bpm minus your age. For example, if you are 30 years old, your maximum heart rate would be 190 bpm (since 220 minus 30 equals 190).