Replay of Lumia Lab LIVE, featuring guest experts Dr. Satish Raj & Dr. Amanda Miller, hosted by Lumia inventor Daniel Lee. #Dysautonomia #wearables #cardiology #pots #pwme #pwlc #medsky #citizenscience #bloodflow #neuroscience #posturalorthostatictachycardiasyndrome
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What is Preload? The Key to Boosting Your Blood Flow | Lumia Lab LIVE with Dr. Satish Raj
YouTube video by Lumia
![Image is a text graphic with today's agenda at DysCourse by The Dysautonomia Project.
🕒 Here’s what’s coming up TODAY (all times in EST):
12–1PM – The Struggle is Real with Dr. Frye
1:05–2:05PM– Practical Nutrition Tips with Jill Brook, MA
2:10–3:10PM – Managing Medications with Dr. Snapper
3:15–4:15PM– Keynote: Practical Tips for POTS Patients with Dr. Raj
4:15–5:15PM – Resource Hall– Explore tools, products & partner orgs!
Let’s make today a powerful day of learning, community, and hope — all in honor of Christina Tournant. [Photo of Christina at bottom.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:waogitvjshctp3ncxnshkxta/bafkreiaujhogjgw34v2mslvaf7x62ldoqle6p6t5td62vzk7tdrzybke3q)
![From the article: "Figure 1. Physiological mechanisms involved in regulating blood flow with orthostasis (left) and order of activation of physiological changes that occur with standing (right)." The illustration shows that a supine person has high central blood volume (on the left) while a standing person (on the right) has several mechanisms that should operate to continue supplying adequate blood to the brain: "Upright position: blood volume redistributed [by] cerebral autoregulation, baroreflex counterregulation, humoral activation, splanchnic vasoconstriction [and] skeletal muscle pump activation. The order of activation is listed to the right of those figures: "Standing," then "Venous pooling and capillary filtration," then "Cerebral blood volume [lowers]," then "stroke volume [lowers]," then "baroreflex counter-regulation," and finally, "Heart rate [increases], Vasoconstriction, Humoral activation."](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:65oc2sjf62ahwui6piyiwkjb/bafkreih2udfgaouglvddlaeo4h3tm7bkizgyc33lbifqneygrrccmibp4y)
