Sicherer found that both fish and shellfish allergies were more commonly found among adults ages 40 to 60. Also: 1  6% of households had at least one person with a seafood allergy. 2  3% of adults had any seafood allergies, compared with 0.6% of children.3  4% of women had seafood allergies, compared with 2% of men.icherer found that both fish and shellfish allergies were more commonly found among adults ages 40 to 60. Also: 1  6% of households had at least one person with a seafood allergy. 2  3% of adults had any seafood allergies, compared with 0.6% of children. 3  4% of women had seafood allergies, compared with 2% of men.
Consider the voltage. The second consideration is voltage, or the pressure under which current flows through an electrical system. While most U.S. appliances work at 110 volts, many foreign power companies generate electricity at 220 volts. Some appliances have a toggle switch that allows them to work with both voltages, but for non-dual voltage appliances, you'll need a converter to step down the 220 electric current to 110 so your appliances won't burn out.
The difference in voltage between Japan and North America is only about 10 volts, so North American products should be usable in Japan as is. However, appliances made for North America that produce heat, such as heaters, irons, hairdryers, etc. will not get as hot in Japan as they do in North America.