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...
A normal resting heart rate should be between 60 and 100 beats per minute. A rate of more than 90 is, however, considered high. 1  The resting heart rate of well trained endurance athletes can be between 40 and 60 beats per minute. 2  Test your rate over a few days to get an average. One basic method is just subtract your age from 220. 2  So if you are 30, your maximum heart rate will be approximately 190 beats per minute. 3  This method is considered more accurate for those under 40. 4  A slightly more complicated recent method is to multiply your age by 0.7, and then subtract that figure from 208.