Cardiac-Control Affecting Learning Through Mindfulness (CALM)

Inclusion criteria

* Fluent in English
* Black/African-American or White/European-American
* Aged between 50-70 years old
* Non-pregnant and non-menstruating (for at least the past year)
* Have normal or corrected-to-normal vision and hearing
* Have reliable access to wifi
* Have an email account that you check regularly
* Have a phone that receives text messages
* Agree to provide blood and urine samples at two campus visits
* Agree to devote up to 50 minutes daily to this study for 10 weeks as well as attend two campus visits

Exclusion criteria

* Have a disorder that would impede performing the breathing intervention (e.g., abnormal cardiac rhythm, arrhythmia, dyspnea)
* Have cognitive impairment
* Have regularly played Lumosity games in the past 6 months
* Have any conditions listed below that are not safe for MRI

  * \*Metal in any parts of your body
  * Claustrophobia
  * Have worked as a machinist, metal worker, or in any profession or hobby grinding metal?
  * Have had an injury to the eye involving a metallic object (e.g., metallic slivers, shavings, or foreign body)
  * Cardiac pacemaker
  * Implanted cardiac defibrillator
  * Aneurysm clip or brain clip
  * Carotid artery vascular clamp
  * Neurostimulator
  * Insulin or infusion pump
  * Spinal fusion stimulator
  * Cochlear, otologic, ear tubes or ear implant
  * Prosthesis (eye/orbital, penile, etc.)
  * Implant held in place by a magnet
  * Heart valve prosthesis
  * Artificial limb or joint
  * Other implants in body or head
  * Electrodes (on body, head or brain)
  * Intravascular stents, filters
  * Shunt (spinal or intraventricular)
  * Vascular access port or catheters
  * IUD
  * Transdermal delivery system or other types of foil patches (e.g., Nitro, Nicotine, Birth control, etc.) that cannot be removed for MRI
  * Shrapnel, buckshot, or bullets
  * Tattooed eyeliner or eyebrows
  * Body piercing(s) that cannot be removed for MRI
  * Metal fragments (eye, head, ear, skin)
  * Internal pacing wires
  * Aortic clips
  * Metal or wire mesh implants
  * Wire sutures or surgical staples
  * Harrington rods (spine)
  * Bone/joint pin, screw, nail, wire, plate
  * Wig or toupee that cannot be removed for MRI
  * Hair implants that involve staples or metal
  * Hearing aid(s) that cannot be removed for MRI
  * Dentures or retainers that cannot be removed for MRI