TUCSON, Arizona (Fox News) — President Donald Trump pledges to contact NBC "Today" co-host Savannah Guthrie after her mother, Nancy Guthrie, went missing in Tuscon.

Key Details:

• Nancy Guthrie, 84, disappeared from her home on Saturday night.
• Authorities suspect kidnapping or abduction due to blood found outside the residence.
• Trump considers sending more federal agents to aid in the investigation.
• Reports of a ransom note circulate, demanding Bitcoin for Nancy’s return.
• Guthrie asks for prayers as the search continues.
• Anyone with information is urged to contact the FBI.
  

  Media:
  

  
  Caption: Savannah Guthrie and mother Nancy Guthrie pictured on "Today" in 2023. (Nathan Congleton/NBC via Getty Images)

  
  Caption: Exteriors of missing person Nancy Guthrie’s home in Tucson, Arizona.

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  CITY, State (Fox News) — A new study conducted by researchers at a university in California has found that regular exercise can greatly reduce the risk of heart disease. The study, which involved over 1,000 participants, showed that those who engaged in physical activity at least three times a week were 50% less likely to develop heart disease compared to those who were sedentary.

  The researchers also noted that the type of exercise did not seem to matter as much as the frequency. Whether participants were running, swimming, or doing yoga, as long as they were active on a regular basis, their risk of heart disease decreased significantly. This study further emphasizes the importance of staying active for overall cardiovascular health.