When the merchant requests a payment from your PayPal account, PayPal will always attempt to withdraw funds from your PayPal balance first. If funds in your balance are insufficient, PayPal will look for and attempt to charge a preferred Payment Method that you have set up for the Recurring Payment.
But even 40 mg of caffeine â about the amount in a cup of tea or a can of soda â will give most people a subtle boost. In fact, many people can detect the effects of just 15 mg of caffeine, about the amount in a single sip of strong coffee or a large cup of decaf.
Up to 400 mg a day is ok, but any more is too much. 400 mg of caffeine is equal to the amount in 4 cups of coffee or 10 cans of soda. However, it is not safe to drink 10 cans of soda in one day. This is only an example to show how much caffeine it contains. 2. Think of the benefits.