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    05:17
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    04:36
  • Meet the trio capturing real-life meet cute stories on streets of NYC

    04:58
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    04:31
  • Save or spend? Couple disagrees on approach to finances

    06:14
  • Tips to spice up your love life

    05:57
  • TODAY fan surprises boyfriend with marriage proposal live!

    05:47
  • How to figure out what love languages you and your partner have

    05:23
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    04:11
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    09:56

Research: Marriage success could be genetic

00:24

Scientists have linked a person’s ability to handle the emotional roller coaster of marriage with a specific gene mutation that affects serotonin levels. Researchers say the impact on marriage is minimal, although it gets stronger with age.