Here’s a question: what do English cricket legend Sir Alastair Cook and Prince Andrew (allegedly) have in common?

As it turns out, they both suffered — or have suffered at one point — from anhidrosis.

It’s a rare and often misunderstood condition that inflicts on the sufferer an inability to sweat properly.

Symptoms include cramps, nausea and an elevated heartbeat. And also — given that sweating is the body’s mechanism to cool itself — an uncomfortable sensation of overheating.

Cook, the former English captain, may have constantly looked cool under pressure facing the fastest bowlers in the world. But in fact, he was dealing with a mild version of the disease while he plundered 12,472 test runs.

And according to the Duke of York, he also suffered from the condition (at least temporarily) — which he attributed to his response to heightened adrenaline during the Falklands War in a troubling interview with the BBC over the weekend.

Turning to stocks, and a few listed companies were feeling the pressure this morning as the ASX200 fell by more than 0.5 per cent into midday trade. The Small Ords fared slightly worse, down by around 0.7 per cent.

Going up

Medtech company HeramMED (ASX:HMD) rose strongly for the second straight day, after some positive news out of the US. The company said its HeraBEAT pregnancy monitoring solution has been approved by the US Food & Drug Administration (FDA).

As evidence that the market views accreditation from US regulators as a relatively difficult thing to achieve, shares in HMD rose by more than 25 per cent and held their gains into midday trade.

Here are the best performing ASX small cap stocks at lunchtime, Monday November 18:

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Code Name Price % Chg Market Cap Volume
SYT Syntonic Ltd 0.002 +33.33% $6.9M 16.2M
HMD HeraMED Ltd 0.28 +27.91% $24.1M 22.1M
IMU Imugene Ltd 0.06 +26.67% $209.7M 260.6M
AUH AustChina Holdings Ltd 0.005 +25.00% $7.8M 557.0k
XCD XCD Energy Ltd 0.01 +25.00% $5.4M 2.4M
ADO Anteotech Ltd 0.02 +22.22% $32.9M 11.6M
ATH Alterity Therapeutics ltd 0.03 +20.83% $26.1M 1.1M
TTB Total Brain Ltd 0.09 +20.51% $90.5M 19.7M
BNL Big Star Energy Ltd 0.006 +20.00% $3.5M 13.0M
EGL Environmental Group Ltd 0.05 +18.42% $9.8M 88.0k
GBE Globe Metals & Mining Ltd 0.02 +16.67% $9.8M 400.0k
CLZ Classic Minerals Ltd 0.0035 +16.67% $19.5M 8.2M
CWL Chant West Holdings Ltd 0.07 +15.87% $9.0M 7.5k
BSM Bass Metals Ltd 0.008 +14.29% $22.5M 125.0k
DRE Dreadnought Resources Ltd 0.008 +14.29% $11.7M 738.8k
PMY Pacifico Minerals Ltd 0.008 +14.29% $23.1M 401.2k
MQR Marquee Resources Ltd 0.07 +13.33% $4.3M 49.0k
AHZ Admedus Ltd 0.08 +11.43% $46.1M 1.3M

Going down

Among the laggards, small-business lender Prospa (ASX:PGL) caught the market’s attention, as it slumped by more than 25 per cent after issuing a revenue downgrade.

The stock, which listed in June this year at $3.78, fell by more than $1 in morning trade to around $2.80.

Here are the worst performing ASX small cap stocks at lunchtime, Monday November 18:

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Code Name Price % Chg Market Cap Volume
GGE Grand Gulf Energy Ltd 0.002 -33.33% $1.5M 167.1k
CAD Caeneus Minerals Ltd 0.001 -33.33% $2.3M 1.9M
SKN Skin Elements Ltd 0.011 -31.25% $1.8M 210.0k
PGL Prospa Group Ltd 2.8 -27.46% $451.8M 982.5k
PNN PepinNini Lithium Ltd 0.002 -20.00% $2.5M 1.5M
MRD Mount Ridley Mines Ltd 0.002 -20.00% $5.4M 2.0M
AYR Alloy Resources Ltd 0.002 -20.00% $3.9M 4.0M
ANL Amani Gold Ltd 0.002 -20.00% $12.1M 83.1k
CZN Corazon Mining Ltd 0.002 -16.67% $5.1M 4.0M
SIQ SmartGroup Corp Ltd 9.27 -15.65% $1.2B 4.1M
SPQ Superior Resources Ltd 0.006 -14.29% $4.5M 25.0k
SMD Syndicated Metals Ltd 0.006 -14.29% $4.7M 1.3M
AD1 ApplyDirect Ltd 0.012 -14.29% $6.6M 98.5k
AX8 Accelerate Resources Ltd 0.04 -13.95% $1.8M 85.0k
CUX Crossland Strategic Metals Ltd 0.007 -12.50% $7.1M 255.8k
VBS Vectus Biosystems Ltd 0.5 -12.28% $11.7M 13.9k
RCW RightCrowd Ltd 0.22 -12.00% $43.5M 27.9k