Leverage is a service provided by brokers or cryptocurrency exchanges that allows the use of borrowed funds to enter a trade. For example, if you have $1,000 in your account, using 10x leverage would increase your position size to $10,000, and with 100x leverage, it would be $100,000. Using leverage can result in much higher profits if the trade is successful - but it also comes with increased risk, as potential losses are amplified in the same way.

Due to the high risk, beginners are generally advised against using leverage. It's better to gain some experience first - and even then, start with small leverage of 3-10x. Higher multipliers should be left for experienced traders. Novices should learn how to avoid losing money before trying to make significant profits: it's best to consider using leverage only after at least 6 months of trading without losses.

To understand how quickly one can lose funds, it's worth trying leveraged trading on a demo account, i.e., without risking real money: if you set 100x leverage, the deposit is likely to disappear almost instantly. It's also important to keep in mind that trading on a demo account is easier than when the stakes are actually high.