阅读理解①Japan's population is rapidly aging, with 28 percent of its people aged 65 or older. This means there aren't enough young people doing jobs that need physical strength (力量) like building things and farming.
②To encourage older people to work on, technology companies in Japan have developed special suits called exoskeleton (外骨骼). These suits can make it easier to lift and carry heavy objects.
③"We have no choice, elderly people need to stay in the workplace," says Daigo Orihara at Innophys. This company has made a suit called the Every Muscle Suit. It's light, weighing less than 4 kg. It doesn't need any batteries (电池) or motors (发动机). When users put it on like a backpack, they pump (抽气) air into it 30 times with a hand pump. Then, the suit can help them lift up to 25 kg easily. The suit costs about 1000 pounds and is used by food companies to help worker lift big boxes, by old people's homes to help workers lift people in and out of bed, as well as by food factories and building companies.
④Another company, Panasonic, is also developing different exoskeleton suits. Its most important one—the Atoun Model Y—costs 4200 pounds. It uses motors instead of air to work and can last for 8 hours. It weighs 4.5 kg and can help users lift up to 10 kg.
⑤Similarly, Japanese company JTEKT, part of the Toyota group, also began selling an exoskeleton. It's used to help older workers and also runs on a motor.
⑥As Japan is facing the problems of fewer and fewer workers, they may need to raise the age when people stop working. This means there will be even more need for exoskeleton to help older people keep working.