Gambling on professional sports and fantasy sports are both popular in the US. Recently, some types of sport gambling have been legalized in some states, while they are restricted in others. People with ‘high reactance’ tendencies have a stronger desire to perform an activity if it is restricted. The researchers showed some participants a scenario where sport gambling or daily fantasy sport would become legal in their state, and told others it would be illegal or discouraged. They then asked participants to rate their desire to gamble in the future. Participants generally had stronger desires to gamble if they were told it would be legal to do so. However, for daily fantasy sport, participants with high reactance had stronger desires to gamble when they were told it would be illegal or discouraged.